Howl of the Horde

Sorcery

When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Raid - If you attacked with a creature this turn, when you cast your next instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy.

Hour of Reckoning

Sorcery

Convoke (Each creature you tap while casting this spell reduces its cost by or by one mana of that creature's color.)

Destroy all nontoken creatures.

"Ravnica, like a hedge, must be pruned, leaving only leaves of verdant uniformity."
-Niszka, Selesnya evangel

Horrifying Revelation

Sorcery

Target player discards a card, then puts the top card of his or her library into his or her graveyard.

"Ours is a glorious transmission! Behold a future where all bow to the Father of Machines."
-Isila, Priest of Sheoldred

Horncaller's Chant

Sorcery

Put a 4/4 green Rhino creature token with trample onto the battlefield, then populate. (Put a token onto the battlefield that's a copy of a creature token you control.)

"The Selesnya are gathering armies. Do you still believe they aren't preparing for war?"
-Teysa, to Isperia

Hordeling Outburst

Sorcery

Put three 1/1 red Goblin creature tokens onto the battlefield.

"Leave no scraps, lest you attract pests."
-Mardu threat

Hive Stirrings

Sorcery

Put two 1/1 colorless Sliver creature tokens onto the battlefield.

Sliver young are sorted into clutches according to their potential and their future role. Human scholars can only guess how those are determined.

Hideous Visage

Sorcery

Creatures you control gain intimidate until end of turn. (Each of those creatures can't be blocked except by artifact creatures and/or creatures that share a color with it.)

"Seeing you cower before me is its own reward."

Hidden Strings

Sorcery

You may tap or untap target permanent, then you may tap or untap another target permanent.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Hex

Sorcery

Destroy six target creatures.

When killing five just isn't enough.

Hellion Eruption

Sorcery

Sacrifice all creatures you control, then put that many 4/4 red Hellion creature tokens onto the battlefield.

Just when you thought you'd be safe, in the middle of an open field with no Eldrazi around for miles.

Haunting Echoes

Sorcery

Exile all cards from target player's graveyard other than basic land cards. For each card exiled this way, search that player's library for all cards with the same name as that card and exile them. Then that player shuffles his or her library.

Harrowing Journey

Sorcery

Target player draws three cards and loses 3 life.

"There are always fools who attempt to traverse Kruin Pass before sundown and every time they wind up in a race for their lives."
-Old Rutstein

Harness by Force

Sorcery

Strive - Harness by Force costs more to cast for each target beyond the first.

Gain control of any number of target creatures until end of turn. Untap those creatures. They gain haste until end of turn.

Harmonize

Sorcery

Draw three cards.

"Life's greatest lessons don't come from focus or concentration. They come from breathing and simply noticing."
-Seton, centaur druid

Hands of Binding

Sorcery

Tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Gruesome Slaughter

Sorcery

Until end of turn, colorless creatures you control gain ": This creature deals damage equal to its power to target creature."

Though Gideon arrived at Sea Gate too late to prevent the massacre, he still had enough time to lead its survivors to relative safety.

Gruesome Encore

Sorcery

Put target creature card from an opponent's graveyard onto the battlefield under your control. It gains haste. Exile it at the beginning of the next end step. If that creature would leave the battlefield, exile it instead of putting it anywhere else.

Gruesome Discovery

Sorcery

Target player discards two cards.

Morbid - If a creature died this turn, instead that player reveals his or her hand, you choose two cards from it, then that player discards those cards.

Growth Spasm

Sorcery

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library. Put a 0/1 colorless Eldrazi Spawn creature token onto the battlefield. It has "Sacrifice this creature: Add to your mana pool."

Ground Assault

Sorcery

Ground Assault deals damage to target creature equal to the number of lands you control.

"Taking down a dragon is easy. All you need is enough space to get in a good swing."
-Narbulg Nine Fingers

Grim Flowering

Sorcery

Draw a card for each creature card in your graveyard.

"Nothing in nature goes to waste, not even the rotting corpse of a good-for-nothing, blood-sucking vampire."
-Halana of Ulvenwald

Grim Discovery

Sorcery

Choose one or both - Return target creature card from your graveyard to your hand; and/or return target land card from your graveyard to your hand.

Few among the living understand just how much of their world is shaped by the ruins of the dead.

Grenzo's Rebuttal

Sorcery

Put a 4/4 red Ogre creature token onto the battlefield. Starting with you, each player chooses an artifact, a creature, and a land from among the permanents controlled by the player to his or her left. Destroy each permanent chosen this way.

Green Sun's Zenith

Sorcery

Search your library for a green creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Shuffle Green Sun's Zenith into its owner's library.

As the green sun crowned, Phyrexian prophecies glowed on the Tree of Tales.

Great Teacher's Decree

Sorcery

Creatures you control get +2/+1 until end of turn.

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.)

Grave Strength

Sorcery

Choose target creature. Put the top three cards of your library into your graveyard, then put a +1/+1 counter on that creature for each creature card in your graveyard.

So long as death follows life, the supply lines of the Sultai will never be cut.

Grave Exchange

Sorcery

Return target creature card from your graveyard to your hand. Target player sacrifices a creature.

"It's a cold, dark journey either way."
-Eruth of Lambholt

Grasp of Phantoms

Sorcery

Put target creature on top of its owner's library.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Grapeshot

Sorcery

Grapeshot deals 1 damage to target creature or player.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Mages often seek to emulate the powerful relics lost to time and apocalypse.

Goblin Rally

Sorcery

Put four 1/1 red Goblin creature tokens onto the battlefield.

You don't so much hire goblins as put ideas in their heads.

Goblin Grenade

Sorcery

As an additional cost to cast Goblin Grenade, sacrifice a Goblin.

Goblin Grenade deals 5 damage to target creature or player.

Don't underestimate the aerodynamic qualities of the common goblin.

Glimpse the Future

Sorcery

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

"No simple coin toss can solve this riddle. You must think and choose wisely."-Shai Fusan, archmage

Glare of Heresy

Sorcery

Exile target white permanent.

No foe is more hated than the former friend.

Give (Give/Take)

Sorcery

Put three +1/+1 counters on target creature.

Fuse (You may cast one or both halves of this card from your hand.)

Gitaxian Probe

Sorcery

( can be paid with either or 2 life.)

Look at target player's hand.

Draw a card.

"My flesh holds no secrets, monster. The spirit of Mirrodin will fight on."
-Vy Covalt, Mirran resistance

Gild

Sorcery

Exile target creature. Put a colorless artifact token named Gold onto the battlefield. It has "Sacrifice this artifact: Add one mana of any color to your mana pool."

Merchants of the Underworld trade in coins of clay. Gold serves another purpose.

Gift of the Gargantuan

Sorcery

Look at the top four cards of your library. You may reveal a creature card and/or a land card from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

Gift of Estates

Sorcery

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, and put them into your hand. Then shuffle your library.

Ghoulcaller's Chant

Sorcery

Choose one - Return target creature card from your graveyard to your hand; or return two target Zombie cards from your graveyard to your hand.

"The living are born small and weak. The dead rise ready to serve. The choice is obvious."
-Gisa, ghoulcaller of Gavony

Ghostform

Sorcery

Up to two target creatures are unblockable this turn.

"There's no such thing as ‘impenetrable.'"