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MTGPlaytest : Cards

Card Library

Sort by: Name Mana Type

Obscuring Æther

Enchantment

Face-down creature spells you cast cost less to cast.

: Turn Obscuring Æther face down. (It becomes a 2/2 creature.)

Mana:
Cardset: Dragons of Tarkir #194 (Rare)
Type: Enchantment

Observant Alseid

Enchantment Creature - Nymph

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Vigilance

Enchanted creature gets +2/+2 and has vigilance.

Mana:
Power: 2/2
Cardset: Theros #24 (Common)
Type: Enchantment

Obsessive Search

Instant

Draw a card.

Madness (If you discard this card, you may cast it for its madness cost instead of putting it into your graveyard.)

The question strained his sanity. The answer snapped it in half.

Mana:
Cardset: Torment #43 (Common)
Type: Instant

Obsianus Golem

Artifact Creature - Golem

"The foot stone is connected to the ankle stone, the ankle stone is connected to the leg stone . . ."
-Song of the Artificer

Mana:
Power: 4/6
Cardset: Sixth Edition #303 (Unknown)
Fourth Edition #357 (Uncommon)
Revised Edition #268 (Uncommon)
Unlimited Edition #268 (Uncommon)
Beta Edition #269 (Unknown)
Alpha Edition #267 (Unknown)
Type: Artifact Creature

Obsidian Acolyte

Creature - Human Cleric

Protection from black

: Target creature gains protection from black until end of turn.

The truthful will stand in the gaze of death and escape unharmed.
-Obsidian acolyte creed

Mana:
Power: 1/1
Cardset: Invasion #22 (Common)
Type: Creature

Obsidian Battle-Axe

Tribal Artifact - Warrior Equipment

Equipped creature gets +2/+1 and has haste.

Whenever a Warrior creature enters the battlefield, you may attach Obsidian Battle-Axe to it.

Equip

It's the flint that sparks a warrior's rage.

Mana:
Cardset: Morningtide #144 (Uncommon)
Type: Artifact

Obsidian Fireheart

Creature - Elemental

: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you." (The land continues to burn after Obsidian Fireheart has left the battlefield.)

Mana:
Power: 4/4
Cardset: Zendikar #140 (Mythic Rare)
Type: Creature

Obstinate Baloth

Creature - Beast

When Obstinate Baloth enters the battlefield, you gain 4 life.

If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.

Mana:
Power: 4/4
Cardset: Magic 2011 #188 (Rare)
Type: Creature

Obstinate Familiar

Creature - Lizard

If you would draw a card, you may skip that draw instead.

"Lizards make excellent familiars. They never know when they've lost."
-Matoc, lavamancer

Mana:
Power: 1/1
Cardset: Odyssey #210 (Rare)
Type: Creature

Obzedat's Aid

Sorcery

Return target permanent card from your graveyard to the battlefield.

"The Obzedat have revived you with purpose. Don't squander their blessing."
-Teysa Karlov, Grand Envoy of Orzhov

Mana:
Cardset: Dragon's Maze #89 (Rare)
Type: Sorcery

Obzedat, Ghost Council

Legendary Creature - Spirit Advisor

When Obzedat, Ghost Council enters the battlefield, target opponent loses 2 life and you gain 2 life.

At the beginning of your end step, you may exile Obzedat. If you do, return it to the battlefield under its owner's control at the beginning of your next upkeep. It gains haste.

Mana:
Power: 5/5
Cardset: Gatecrash #182 (Mythic Rare)
Type: Creature

Ocular Halo

Enchantment - Aura

Enchant creature

Enchanted creature has ": Draw a card."

: Enchanted creature gains vigilance until end of turn.

While the soldier dreams, the eyes stand watch.

Mana:
Cardset: Dissension #28 (Common)
Type: Enchantment

Oculus

Creature - Homunculus

When Oculus dies, you may draw a card.

"In its gaze I saw no mercy, no recognition that I was worthy to exist."
-Kara Vrist, Neurok agent

Mana:
Power: 1/1
Cardset: Mirrodin Besieged #29 (Common)
Type: Creature

Odds (Odds/Ends)

Instant

Flip a coin. If it comes up heads, counter target instant or sorcery spell. If it comes up tails, copy that spell and you may choose new targets for the copy.

Mana:
Cardset: Dissension #153 (Rare)
Type: Instant

Odious Trow

Creature - Troll

: Regenerate Odious Trow.

Trows are the vile trolls that lurk in the bogs of Shadowmoor. They reappear each night to frighten the living and gnaw the dead.

Mana: {{/}}
Power: 1/1
Cardset: Eventide #125 (Common)
Type: Creature

Odric, Master Tactician

Legendary Creature - Human Soldier

First strike (This creature deals combat damage before creatures without first strike.)

Whenever Odric, Master Tactician and at least three other creatures attack, you choose which creatures block this combat and how those creatures block.

"Fear holds no place in faith's battle plan."

Mana:
Power: 3/4
Cardset: Magic 2013 #23 (Rare)
Type: Creature

Odunos River Trawler

Creature - Zombie

When Odunos River Trawler enters the battlefield, return target enchantment creature card from your graveyard to your hand.

, Sacrifice Odunos River Trawler: Return target enchantment creature card from your graveyard to your hand.

Mana:
Power: 2/2
Cardset: Born of the Gods #79 (Uncommon)
Type: Creature

Odylic Wraith

Creature - Wraith

Swampwalk

Whenever Odylic Wraith deals damage to a player, that player discards a card.

By the time you've seen it, you won't remember that you did.

Mana:
Power: 2/2
Cardset: Weatherlight #19 (Uncommon)
Type: Creature

Off Balance

Instant

Target creature can't attack or block this turn.

A heavy weapon deals plenty of damage-but it does have to hit.

Mana:
Cardset: Nemesis #15 (Common)
Type: Instant

Offalsnout

Creature - Elemental

Flash

When Offalsnout leaves the battlefield, exile target card from a graveyard.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Mana:
Power: 2/2
Cardset: Morningtide #71 (Uncommon)
Type: Creature

Offering to Asha

Instant

Counter target spell unless its controller pays . You gain 4 life.

"His body belongs to Bant now. His soul? I honestly don't know. I expect it belongs to the angels."
-Rafiq of the Many

Mana:
Cardset: Alara Reborn #9 (Common)
Type: Instant

Ogre Battledriver

Creature - Ogre Warrior

Whenever another creature enters the battlefield under your control, that creature gets +2/+0 and gains haste until end of turn. (It can attack and this turn.)

Ogres are driven by passion, rage, and another ogre standing behind them with a whip.

Mana:
Power: 3/3
Cardset: Magic 2014 #148 (Rare)
Type: Creature

Ogre Enforcer

Creature - Ogre

Ogre Enforcer can't be destroyed by lethal damage unless lethal damage dealt by a single source is marked on it.

"Ate up all of his siblings in the first week. A good beginning for one destined to command."
-Suka, ogre matron

Mana:
Power: 4/4
Cardset: Visions #89 (Rare)
Type: Creature

Ogre Gatecrasher

Creature - Ogre Rogue

When Ogre Gatecrasher enters the battlefield, destroy target creature with defender.

A popular game among ogres is to see how many revolutions a head can make before it pops off.

Mana:
Power: 3/3
Cardset: Dissension #67 (Common)
Type: Creature

Ogre Geargrabber

Creature - Ogre Warrior

Whenever Ogre Geargrabber attacks, gain control of target Equipment an opponent controls until end of turn. Attach it to Ogre Geargrabber. When you lose control of that Equipment, unattach it.

Long reach, short attention span.

Mana:
Power: 4/4
Cardset: Scars of Mirrodin #99 (Uncommon)
Type: Creature

Ogre Jailbreaker

Creature - Ogre Rogue

Defender

Ogre Jailbreaker can attack as though it didn't have defender as long as you control a Gate.

It took three years for it to occur to him to use the chain as a weapon, but once it did, he made up for lost time.

Mana:
Power: 4/4
Cardset: Return to Ravnica #72 (Common)
Type: Creature

Ogre Leadfoot

Creature - Ogre

Whenever Ogre Leadfoot becomes blocked by an artifact creature, destroy that creature.

Mana:
Power: 3/3
Cardset: Mirrodin #102 (Common)
Type: Creature

Ogre Marauder

Creature - Ogre Warrior

Whenever Ogre Marauder attacks, it gains "Ogre Marauder is unblockable" until end of turn unless defending player sacrifices a creature.

Once freed, the oni demanded more and more sacrifices to appease them. The ogres happily obliged.

Mana:
Power: 3/1
Cardset: Betrayers of Kamigawa #75 (Uncommon)
Type: Creature

Ogre Menial

Creature - Ogre

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

: Ogre Menial gets +1/+0 until end of turn.

Mana:
Cardset: New Phyrexia #89 (Common)
Type: Creature

Ogre Recluse

Creature - Ogre Warrior

Whenever a player casts a spell, tap Ogre Recluse.

"Those ogres who did not embrace oni worship were cast out, cursed, and forced into hermitage, waiting for the day the oni would come for them."
-The History of Kamigawa

Mana:
Power: 5/4
Cardset: Betrayers of Kamigawa #113 (Uncommon)
Type: Creature

Ogre Resister

Creature - Ogre

He didn't have a word for "home," but he knew it was something to be defended.

Mana:
Power: 4/3
Cardset: Mirrodin Besieged #72 (Common)
Type: Creature

Ogre Savant

Creature - Ogre Wizard

When Ogre Savant enters the battlefield, if was spent to cast Ogre Savant, return target creature to its owner's hand.

He's an oxymoron.

Mana:
Power: 3/2
Cardset: Izzet vs. Golgari #9 (Common)
Ajani vs. Nicol Bolas #55 (Common)
Guildpact #70 (Common)
Type: Creature

Ogre Sentry

Creature - Ogre Warrior

Defender

"You have to appreciate the genius of it. Why bother building defenses when you can just fill the pass with angry ogres?"
-Javad Nasrin, Ondu relic hunter

Mana:
Power: 3/3
Cardset: Rise of the Eldrazi #159 (Common)
Type: Creature

Ogre Shaman

Creature - Ogre Shaman

, Discard a card at random: Ogre Shaman deals 2 damage to target creature or player.

Ogre shamans must be bright enough to learn their invocations and dim enough to use them.

Mana:
Power: 3/3
Cardset: Exodus #91 (Rare)
Type: Creature

Ogre Slumlord

Creature - Ogre Rogue

Whenever another nontoken creature dies, you may put a 1/1 black Rat creature token onto the battlefield.

Rats you control have deathtouch.

"His tenement is filled with the most vile, disgusting vermin. It's infested with rats, too."
-Branko One-Ear

Mana:
Power: 3/3
Cardset: Gatecrash #74 (Rare)
Type: Creature

Ogre Taskmaster

Creature - Ogre

Ogre Taskmaster can't block.

Three little goblins, enjoying their brew. One bumped an ogre, and then there were two.

Mana:
Power: 4/3
Cardset: Ninth Edition #205 (Uncommon)
Eighth Edition #205 (Uncommon)
Seventh Edition #203 (Uncommon)
Mercadian Masques #206 (Uncommon)
Type: Creature

Ogre's Cleaver

Artifact - Equipment

Equipped creature gets +5/+0.

Equip

She adopted the weapon of the slave-lord Kazuul, and with it, all his cruelty.

Mana:
Cardset: Rise of the Eldrazi #220 (Uncommon)
Type: Artifact

Ohran Viper

Snow Creature - Snake

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.

Whenever Ohran Viper deals combat damage to a player, you may draw a card.

The ohran viper is not cold-blooded. Its veins course with the same antigelid venom used to kill its prey.

Mana:
Power: 1/3
Cardset: Coldsnap #115 (Rare)
Type: nknown

Ohran Yeti

Snow Creature - Yeti

{S}: Target snow creature gains first strike until end of turn. ({S} can be paid with one mana from a snow permanent.)

When a snowdrift shows you its eyes, it's already too late.

Mana:
Power: 3/3
Cardset: Coldsnap #93 (Common)
Type: nknown

Ojutai Exemplars

Creature - Human Monk

Whenever you cast a noncreature spell, choose one -

• Tap target creature.

• Ojutai Exemplars gains first strike and lifelink until end of turn.

• Exile Ojutai Exemplars, then return it to the battlefield tapped under its owner's control.

Mana:
Power: 4/4
Cardset: Dragons of Tarkir #27 (Mythic Rare)
Type: Creature

Ojutai Interceptor

Creature - Bird Soldier

Flying

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

"Though I may soar, I could never fly as high as the dragons."

Mana:
Power: 3/1
Cardset: Dragons of Tarkir #66 (Common)
Type: Creature

Ojutai Monument

Artifact

: Add or to your mana pool.

: Ojutai Monument becomes a 4/4 white and blue Dragon artifact creature with flying until end of turn.

Ojutai spends time at all his strongholds, but he most favors Cori Stronghold for his meditation.

Mana:
Cardset: Dragons of Tarkir #242 (Uncommon)
Type: Artifact

Ojutai's Breath

Instant

Tap target creature. It doesn't untap during its controller's next untap step.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Mana:
Cardset: Dragons of Tarkir #67 (Common)
Type: Instant

Ojutai's Command

Instant

Choose two -

• Return target creature card with converted mana cost 2 or less from your graveyard to the battlefield.

• You gain 4 life.

• Counter target creature spell.

• Draw a card.

Mana:
Cardset: Dragons of Tarkir #227 (Rare)
Type: Instant

Ojutai's Summons

Sorcery

Put a 2/2 blue Djinn Monk creature token with flying onto the battlefield.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Mana:
Cardset: Dragons of Tarkir #68 (Common)
Type: Sorcery

Ojutai, Soul of Winter

Legendary Creature - Dragon

Flying, vigilance

Whenever a Dragon you control attacks, tap target nonland permanent an opponent controls. That permanent doesn't untap during its controller's next untap step.

"When I battled Ojutai, I realized my learning had only begun."
-Shu Yun, the Silent Tempest

Mana:
Power: 5/6
Cardset: Fate Reforged #156 (Rare)
Type: Creature

Okiba-Gang Shinobi

Creature - Rat Ninja

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Okiba-Gang Shinobi deals combat damage to a player, that player discards two cards.

Mana:
Power: 3/2
Cardset: Planechase 2012 #35 (Common)
Betrayers of Kamigawa #76 (Common)
Type: Creature

Okina Nightwatch

Creature - Human Monk

As long as you have more cards in hand than each opponent, Okina Nightwatch gets +3/+3.

Only the most skilled budoka could protect the Okina Shrine. Only the best of these protectors took the night watch.

Mana:
Power: 4/3
Cardset: Saviors of Kamigawa #140 (Common)
Type: Creature

Okina, Temple to the Grandfathers

Legendary Land

: Add to your mana pool.

, : Target legendary creature gets +1/+1 until end of turn.

If a land can be said to have a heart, Okina is the heart of Kamigawa.

Mana:
Cardset: Champions of Kamigawa #280 (Rare)
Type: Land

Okk

Creature - Goblin

Okk can't attack unless a creature with greater power also attacks.

Okk can't block unless a creature with greater power also blocks.

Mana:
Power: 4/4
Cardset: Eighth Edition #206 (Rare)
Seventh Edition #204 (Rare)
Urza's Saga #204 (Rare)
Type: Creature

Old Ghastbark

Creature - Treefolk Warrior

"Beware of trees that talk. Their words are threats. And mind the ones that sway and creak. They too threaten us, but in a foreign tongue."
-The Book of Other Folk

Mana: {{/}}{{/}}
Power: 3/6
Cardset: Shadowmoor #232 (Common)
Type: Creature

Old Man of the Sea

Creature - Djinn

You may choose not to untap Old Man of the Sea during your untap step.

: Gain control of target creature with power less than or equal to Old Man of the Sea's power for as long as Old Man of the Sea remains tapped and that creature's power remains less than or equal to Old Man of the Sea's power.

Mana:
Power: 2/3
Cardset: Arabian Nights #24 (Uncommon)
Type: Creature

Olivia Voldaren

Legendary Creature - Vampire

Flying

: Olivia Voldaren deals 1 damage to another target creature. That creature becomes a Vampire in addition to its other types. Put a +1/+1 counter on Olivia Voldaren.

: Gain control of target Vampire for as long as you control Olivia Voldaren.

Mana:
Power: 3/3
Cardset: Innistrad #215 (Mythic Rare)
Type: Creature

Oloro, Ageless Ascetic

Legendary Creature - Giant Soldier

At the beginning of your upkeep, you gain 2 life.Whenever you gain life, you may pay . If you do, draw a card and each opponent loses 1 life.At the beginning of your upkeep, if Oloro, Ageless Ascetic is in the command zone, you gain 2 life.

Mana:
Power: 4/5
Cardset: Commander 2013 #203 (Mythic Rare)
Type: Creature

Omega Myr

Artifact Creature - Myr

Mana:
Power: 1/2
Cardset: Mirrodin #223 (Common)
Type: Artifact Creature

Omen Machine

Artifact

Players can't draw cards.

At the beginning of each player's draw step, that player exiles the top card of his or her library. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.

Mana:
Cardset: New Phyrexia #148 (Rare)
Type: Artifact

Omen of Fire

Instant

Return all Islands to their owners' hands.

Each player sacrifices a Plains or a white permanent for each white permanent he or she controls.

"Let Balduvia burn to warm Kjeldor's hearth!"
-General Varchild

Mana:
Cardset: Alliances #112 (Rare)
Type: Instant

Omenspeaker

Creature - Human Wizard

When Omenspeaker enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Her prophecies amaze her even as she speaks them.

Mana:
Power: 1/3
Cardset: Theros #57 (Common)
Type: Creature

Omnath, Locus of Mana

Legendary Creature - Elemental

Green mana doesn't empty from your mana pool as steps and phases end.

Omnath, Locus of Mana gets +1/+1 for each green mana in your mana pool.

It gathers against the coming storm.

Mana:
Power: 1/1
Cardset: Worldwake #109 (Mythic Rare)
Type: Creature

Omnath, Locus of Rage

Legendary Creature - Elemental

Landfall - Whenever a land enters the battlefield under your control, put a 5/5 red and green Elemental creature token onto the battlefield.

Whenever Omnath, Locus of Rage or another Elemental you control dies, Omnath deals 3 damage to target creature or player.

Mana:
Power: 5/5
Cardset: Battle for Zendikar #217 (Mythic Rare)
Type: Creature

Omnibian

Creature - Frog

: Target creature becomes a 3/3 Frog until end of turn.

"This creature has hyperevolved chameleonic abilities. It no longer mimics its surroundings, instead forcing them to take on its form."
-Simic research notes

Mana:
Power: 3/3
Cardset: Dissension #119 (Rare)
Type: Creature

Omniscience

Enchantment

You may cast nonland cards from your hand without paying their mana costs.

"The things I once imagined would be my greatest achievements were only the first steps toward a future I can only begin to fathom."
-Jace Beleren

Mana:
Cardset: Magic 2013 #63 (Mythic Rare)
Type: Enchantment

Ondu Champion

Creature - Minotaur Warrior Ally

Rally - Whenever Ondu Champion or another Ally enters the battlefield under your control, creatures you control gain trample until end of turn.

"Put a minotaur at the head of an army and suddenly all the soldiers act like they have horns."-Gideon Jura

Mana:
Power: 4/3
Cardset: Battle for Zendikar #149 (Common)
Type: Creature

Ondu Cleric

Creature - Kor Cleric Ally

Whenever Ondu Cleric or another Ally enters the battlefield under your control, you may gain life equal to the number of Allies you control.

A cleric's true balm is the confidence he inspires in his compatriots.

Mana:
Power: 1/1
Cardset: Zendikar #30 (Common)
Type: Creature

Ondu Giant

Creature - Giant Druid

When Ondu Giant enters the battlefield, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Some druids nurture gardens. Others nurture continents.

Mana:
Power: 2/4
Cardset: Planechase 2012 #71 (Common)
Rise of the Eldrazi #202 (Common)
Type: Creature

Ondu Greathorn

Creature - Beast

First strike

Landfall - Whenever a land enters the battlefield under your control, Ondu Greathorn gets +2/+2 until end of turn.

"May your horns get lodged in an Eldrazi's bony face, ornery brute!"-Bruse Tarl, Goma Fada nomad

Mana:
Power: 2/3
Cardset: Battle for Zendikar #40 (Common)
Type: Creature

Ondu Rising

Sorcery

Whenever a creature attacks this turn, it gains lifelink until end of turn.

Awaken 4- (If you cast this spell for , also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Mana:
Cardset: Battle for Zendikar #41 (Uncommon)
Type: Sorcery

Ondu War Cleric

Creature - Human Cleric Ally

Cohort - , Tap an untapped Ally you control: You gain 2 life.

"I will follow the light of Iona into battle, and I will know no fear."

Mana:
Power: 2/2
Cardset: Oath of the Gatewatch #31 (Common)
Type: Creature

One Dozen Eyes

Sorcery

Choose one - Put a 5/5 green Beast creature token onto the battlefield; or put five 1/1 green Insect creature tokens onto the battlefield.

Entwine (Choose both if you pay the entwine cost.)

Mana:
Cardset: Commander 2013 #159 (Uncommon)
Mirrodin #126 (Uncommon)
Type: Sorcery

One Thousand Lashes

Enchantment - Aura

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

At the beginning of the upkeep of enchanted creature's controller, that player loses 1 life.

Mana:
Cardset: Gatecrash #183 (Uncommon)
Type: Enchantment

One with Nature

Enchantment - Aura

Enchant creature

Whenever enchanted creature deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle your library.

Mana:
Cardset: Scourge #125 (Uncommon)
Type: Enchantment

One with Nothing

Instant

Discard your hand.

When nothing remains, everything is equally possible.

Mana:
Cardset: Saviors of Kamigawa #84 (Rare)
Type: Instant

One-Eyed Scarecrow

Artifact Creature - Scarecrow

Defender

Creatures with flying your opponents control get -1/-0.

Farmhands and priests mutter curses at the ragged thing; it unnerves more than just the crows.

Mana:
Power: 2/3
Cardset: Innistrad #230 (Common)
Type: Artifact Creature

Oni of Wild Places

Creature - Demon Spirit

Haste

At the beginning of your upkeep, return a red creature you control to its owner's hand.

The oni leapt easily from peak to peak, toying with its victims, its voice a purr from the rumbling depths of nightmare.

Mana:
Power: 6/5
Cardset: Commander #130 (Uncommon)
Saviors of Kamigawa #108 (Uncommon)
Type: Creature

Oni Possession

Enchantment - Aura

Enchant creature

At the beginning of your upkeep, sacrifice a creature.

Enchanted creature gets +3/+3 and has trample.

Enchanted creature is a Demon Spirit.

Mana:
Cardset: Divine vs. Demonic #51 (Uncommon)
Champions of Kamigawa #135 (Uncommon)
Type: Enchantment

Onslaught

Enchantment

Whenever you cast a creature spell, tap target creature.

The last thing to go through the mogg's mind was its teeth.

Mana:
Cardset: Exodus #92 (Common)
Type: Enchantment

Onulet

Artifact Creature - Construct

When Onulet dies, you gain 2 life.

An early inspiration for Urza, Tocasia's Onulets contained magical essences that could be cannibalized after they stopped functioning.

Mana:
Power: 2/2
Cardset: Fourth Edition #358 (Rare)
Revised Edition #269 (Rare)
Antiquities #24 (Uncommon)
Type: Artifact Creature

Onyx Goblet

Artifact

: Target player loses 1 life.

The goblet was a gift from the sphinx Gorael, who hoped humans and vedalken would eventually destroy each other to acquire it, leaving all of Esper to her own kind.

Mana:
Cardset: Shards of Alara #81 (Common)
Type: Artifact

Onyx Mage

Creature - Human Wizard

: Target creature you control gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

"We wield death and darkness, powers that make lesser mages tremble in fear."
-Onyx creed

Mana:
Power: 2/1
Cardset: Magic 2012 #103 (Uncommon)
Type: Creature

Onyx Talisman

Artifact

Whenever a player casts a black spell, you may pay . If you do, untap target permanent.

Mana:
Cardset: Ice Age #306 (Uncommon)
Type: Artifact

Oona's Blackguard

Creature - Faerie Rogue

Flying

Each other Rogue creature you control enters the battlefield with an additional +1/+1 counter on it.

Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, that player discards a card.

Mana:
Power: 1/1
Cardset: Morningtide #72 (Uncommon)
Type: Creature

Oona's Gatewarden

Creature - Faerie Soldier

Defender, flying

Wither (This deals damage to creatures in the form of -1/-1 counters.)

"So now you've seen Glen Elendra. Take a good look. It will be the last thing you'll ever see."

Mana: {{/}}
Power: 2/1
Cardset: Shadowmoor #173 (Common)
Type: Creature

Oona's Grace

Instant

Target player draws a card.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Oona grants her favored subjects a dream from her own guarded heart.

Mana:
Cardset: Eventide #27 (Common)
Type: Instant

Oona's Prowler

Creature - Faerie Rogue

Flying

Discard a card: Oona's Prowler gets -2/-0 until end of turn. Any player may activate this ability.

Deep in Glen Elendra blossoms Oona, queen of the faeries, nourished by secrets and pollinated by stolen dreams.

Mana:
Power: 3/1
Cardset: Lorwyn #133 (Rare)
Type: Creature

Oona, Queen of the Fae

Legendary Creature - Faerie Wizard

Flying

: Choose a color. Target opponent exiles the top X cards of his or her library. For each card of the chosen color exiled this way, put a 1/1 blue and black Faerie Rogue creature token with flying onto the battlefield.

Mana: {{/}}{{/}}{{/}}
Power: 5/5
Cardset: Modern Masters #193 (Rare)
Shadowmoor #172 (Rare)
Type: Creature

Ooze Flux

Enchantment

, Remove one or more +1/+1 counters from among creatures you control: Put an X/X green Ooze creature token onto the battlefield, where X is the number of +1/+1 counters removed this way.

Mana:
Cardset: Gatecrash #128 (Rare)
Type: Enchantment

Ooze Garden

Enchantment

, Sacrifice a non-Ooze creature: Put an X/X green Ooze creature token onto the battlefield, where X is the sacrificed creature's power. Activate this ability only any time you could cast a sorcery.

Jund has little necromancy. Instead, the flesh of its dead gives rise to algal fiends.

Mana:
Cardset: Shards of Alara #143 (Rare)
Type: Enchantment

Opal Acrolith

Enchantment

Whenever an opponent casts a creature spell, if Opal Acrolith is an enchantment, Opal Acrolith becomes a 2/4 Soldier creature.

: Opal Acrolith becomes an enchantment.

Mana:
Cardset: Urza's Saga #22 (Uncommon)
Type: Enchantment

Opal Archangel

Enchantment

When an opponent casts a creature spell, if Opal Archangel is an enchantment, Opal Archangel becomes a 5/5 Angel creature with flying and vigilance.

Mana:
Cardset: Urza's Saga #23 (Rare)
Type: Enchantment

Opal Avenger

Enchantment

When you have 10 or less life, if Opal Avenger is an enchantment, Opal Avenger becomes a 3/5 Soldier creature.

As the sun grew cold in the realm, the statue grew warm.

Mana:
Cardset: Urza's Legacy #15 (Rare)
Type: Enchantment

Opal Caryatid

Enchantment

When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature.

Mana:
Cardset: Urza's Saga #24 (Common)
Type: Enchantment

Opal Champion

Enchantment

When an opponent casts a creature spell, if Opal Champion is an enchantment, Opal Champion becomes a 3/3 Knight creature with first strike.

Mana:
Cardset: Urza's Legacy #16 (Common)
Type: Enchantment

Opal Gargoyle

Enchantment

When an opponent casts a creature spell, if Opal Gargoyle is an enchantment, Opal Gargoyle becomes a 2/2 Gargoyle creature with flying.

Mana:
Cardset: Urza's Saga #25 (Common)
Type: Enchantment

Opal Guardian

Enchantment

When an opponent casts a creature spell, if Opal Guardian is an enchantment, Opal Guardian becomes a 3/4 Gargoyle creature with flying and protection from red.

It was a moment in time, cast in stone-a moment whose time had come again.

Mana:
Cardset: Time Spiral #30 (Rare)
Type: Enchantment

Opal Lake Gatekeepers

Creature - Vedalken Soldier

When Opal Lake Gatekeepers enters the battlefield, if you control two or more Gates, you may draw a card.

Sentries guard Ravnica's landmarks and outlying districts, unaware of these places' import to the maze.

Mana:
Power: 2/4
Cardset: Dragon's Maze #16 (Common)
Type: Creature

Opal Palace

Land

: Add to your mana pool., : Add to your mana pool one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters the battlefield with a number of +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Cardset: Commander 2013 #310 (Common)
Type: Land

Opal Titan

Enchantment

When an opponent casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors.

Mana:
Cardset: Urza's Saga #26 (Rare)
Type: Enchantment

Opal-Eye, Konda's Yojimbo

Legendary Creature - Fox Samurai

Defender (This creature can't attack.)

Bushido 1 (When this blocks or becomes blocked, it gets +1/+1 until end of turn.)

: The next time a source of your choice would deal damage this turn, that damage is dealt to Opal-Eye, Konda's Yojimbo instead.

: Prevent the next 1 damage that would be dealt to Opal-Eye this turn.

Mana:
Power: 1/4
Cardset: Betrayers of Kamigawa #17 (Rare)
Type: Creature

Opalescence

Enchantment

Each other non-Aura enchantment is a creature with power and toughness each equal to its converted mana cost. It's still an enchantment.

Mana:
Cardset: Urza's Destiny #13 (Rare)
Type: Enchantment

Opaline Bracers

Artifact - Equipment

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)

Equipped creature gets +X/+X, where X is the number of charge counters on Opaline Bracers.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Mana:
Cardset: Fifth Dawn #141 (Common)
Type: Artifact
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