Screeching Sliver

Creature - Sliver

All Slivers have ": Target player puts the top card of his or her library into his or her graveyard."

"What wears down my people most, I think, is not the danger, but the endless screeching outside our camp."
-Merrik Aidar, Benalish patrol

Mindlash Sliver

Creature - Sliver

All Slivers have ", Sacrifice this permanent: Each player discards a card."

Though Dominaria's queenless slivers lack a single purpose, in some the instinct for self-sacrifice remains extremely strong.

Magus of the Scroll

Creature - Human Wizard

, : Name a card. Reveal a card at random from your hand. If it's the named card, Magus of the Scroll deals 2 damage to target creature or player.

Norin the Wary

Legendary Creature - Human Warrior

When a player casts a spell or a creature attacks, exile Norin the Wary. Return it to the battlefield under its owner's control at the beginning of the next end step.

"I have a bad feeling about this."

Greenseeker

Creature - Elf Spellshaper

, , Discard a card: Search your library for a basic land card, reveal it, and put it into your hand. Then shuffle your library.

"A rumor passes among the snakes, whispered by the rushes, inspiring the seekers: the goddess Freyalise is alive in Skyshroud."

Magus of the Candelabra

Creature - Human Wizard

, : Untap X target lands.

"What would Urza think, I wonder, if he could hear how the nature mages still snarl at his name, but venerate the work of his apprentice?"
-Teferi, to Jhoira

Brass Gnat

Artifact Creature - Insect

Flying

Brass Gnat doesn't untap during your untap step.

At the beginning of your upkeep, you may pay . If you do, untap Brass Gnat.

Its buzzing is the sound of its inner mechanisms, ever winding down.

Timebender

Creature - Human Wizard

Morph (You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Timebender is turned face up, choose one - Remove two time counters from target permanent or suspended card; or put two time counters on target permanent with a time counter on it or suspended card.

Ridged Kusite

Creature - Horror Spellshaper

, , Discard a card: Target creature gets +1/+0 and gains first strike until end of turn.

"It offers but a taste of the power that the shadows have to offer. But even that is a heady wine indeed."
-Ratadrabik of Urborg

Firefright Mage

Creature - Goblin Spellshaper

, , Discard a card: Target creature can't be blocked this turn except by artifact creatures and/or red creatures.

After millennia of advancement in goblin military theory, Toggo VI realized that almost everyone is afraid of fire.

Uktabi Drake

Creature - Drake

Flying, haste

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Essence Warden

Creature - Elf Shaman

Whenever another creature enters the battlefield, you gain 1 life.

"The more our numbers grow, the more I gain hope that Volrath and his cursed stronghold will one day fall."
-Eladamri, Lord of Leaves

Samite Censer-Bearer

Creature - Human Rebel Cleric

, Sacrifice Samite Censer-Bearer: Prevent the next 1 damage that would be dealt to each creature you control this turn.

Samite alchemists extracted aromatic traces of healing minerals from the residue of the receding salt dunes.

Rift Elemental

Creature - Elemental

, Remove a time counter from a permanent you control or suspended card you own: Rift Elemental gets +2/+0 until end of turn.

"It's difficult to heal a rift after it begins wandering about on its own."
-Teferi

Llanowar Augur

Creature - Elf Shaman

Sacrifice Llanowar Augur: Target creature gets +3/+3 and gains trample until end of turn. Activate this ability only during your upkeep.

"I am irrelevant. The future I hold in my hands is everything."

Llanowar Mentor

Creature - Elf Spellshaper

, , Discard a card: Put a 1/1 green Elf Druid creature token named Llanowar Elves onto the battlefield. It has ": Add to your mana pool."

Magus of the Vineyard

Creature - Human Wizard

At the beginning of each player's precombat main phase, add to that player's mana pool.

Battered and beaten by years of salt and claw, he never ceased to walk, and to seed. Only now, in this time of rebirth, do his seeds take root.

Utopia Mycon

Creature - Fungus

At the beginning of your upkeep, put a spore counter on Utopia Mycon.

Remove three spore counters from Utopia Mycon: Put a 1/1 green Saproling creature token onto the battlefield.

Sacrifice a Saproling: Add one mana of any color to your mana pool.

Virulent Sliver

Creature - Sliver

All Sliver creatures have poisonous 1. (Whenever a Sliver deals combat damage to a player, that player gets a poison counter. A player with ten or more poison counters loses the game.)

Icatian Javelineers

Creature - Human Soldier

Icatian Javelineers enters the battlefield with a javelin counter on it.

, Remove a javelin counter from Icatian Javelineers: Icatian Javelineers deals 1 damage to target creature or player.

Flying Men

Creature - Human

Flying

Saffiyah clapped her hands and twenty flying men appeared at her side, each well trained in the art of combat.

Shadow Guildmage

Creature - Human Wizard

, : Put target creature you control on top of its owner's library.

, : Shadow Guildmage deals 1 damage to target creature or player and 1 damage to you.

To keep the dead so others may live.
-Shadow Guild maxim

Thallid

Creature - Fungus

At the beginning of your upkeep, put a spore counter on Thallid.

Remove three spore counters from Thallid: Put a 1/1 green Saproling creature token onto the battlefield.

Goblin Cadets

Creature - Goblin

Whenever Goblin Cadets blocks or becomes blocked, target opponent gains control of it. (This removes Goblin Cadets from combat.)

"If you kids don't stop that racket, I'm turning this expedition around right now!"

Veteran Explorer

Creature - Human Soldier Scout

When Veteran Explorer dies, each player may search his or her library for up to two basic land cards and put them onto the battlefield. Then each player who searched his or her library this way shuffles it.

Cloudfin Raptor

Creature - Bird Mutant

Flying

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Experiment One

Creature - Human Ooze

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Remove two +1/+1 counters from Experiment One: Regenerate Experiment One.

Legion Loyalist

Creature - Goblin Soldier

Haste

Battalion - Whenever Legion Loyalist and at least two other creatures attack, creatures you control gain first strike and trample until end of turn and can't be blocked by creature tokens this turn.

Boros Elite

Creature - Human Soldier

Battalion - Whenever Boros Elite and at least two other creatures attack, Boros Elite gets +2/+2 until end of turn.

"First, you must fight among the rank and file. It is there I will discern your skills as a leader."
-Aurelia, to Gideon Jura

Wasteland Viper

Creature - Snake

Deathtouch

Bloodrush - , Discard Wasteland Viper: Target attacking creature gets +1/+2 and gains deathtouch until end of turn.

"The Gruul embrace all things poisonous and living in the cracks of society."
-Teysa Karlov, Grand Envoy of Orzhov

Shadow Alley Denizen

Creature - Vampire Rogue

Whenever another black creature enters the battlefield under your control, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Foundry Street Denizen

Creature - Goblin Warrior

Whenever another red creature enters the battlefield under your control, Foundry Street Denizen gets +1/+0 until end of turn.

After the Foundry Street riot, Arrester Hulbein tried to ban bludgeons. Which, inevitably, resulted in another riot.

Realmwright

Creature - Vedalken Wizard

As Realmwright enters the battlefield, choose a basic land type.

Lands you control are the chosen type in addition to their other types.

There is not a single inch of Ravnica that hasn't been altered at one point or another to fit someone's whims.

Dutiful Thrull

Creature - Thrull

: Regenerate Dutiful Thrull.

"They are useful, but there's little satisfaction in supplication that throws itself under your heel."
-Jozica, Orzhov enforcer

Spire Tracer

Creature - Elf Scout

Spire Tracer can't be blocked except by creatures with flying or reach.

Cartographers on Ravnica chart not just the horizontal, but also the vertical.

Thrull Parasite

Creature - Thrull

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

, Pay 2 life: Remove a counter from target nonland permanent.

The hunger of a vampire and the subtlety of a tax collector.

Soulmender

Creature - Human Cleric

: You gain 1 life.

"Healing is more art than magic. Well, there is still quite a bit of magic."

Galerider Sliver

Creature - Sliver

Sliver creatures you control have flying.

Masters of adaptation, galeriders serve multiple purposes useful to the hive. When they're not patrolling their territories, their majestic wings serve to circulate cool air through the vast hive chambers.

Festering Newt

Creature - Salamander

When Festering Newt dies, target creature an opponent controls gets -1/-1 until end of turn. That creature gets -4/-4 instead if you control a creature named Bogbrew Witch.

Its back bubbles like a witch's cauldron, and it smells just as vile.

Shadowborn Apostle

Creature - Human Cleric

A deck can have any number of cards named Shadowborn Apostle.

, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card and put it onto the battlefield. Then shuffle your library.