Flying

High Sentinels of Arashin gets +1/+1 for each other creature you control with a +1/+1 counter on it.

: Put a +1/+1 counter on target creature.

Target player sacrifices an artifact or creature. Hit deals damage to that player equal to that permanent's mana value.

Hoisted Hireling has flying as long as it's being held above the battlefield.

Hooded Hydra enters the battlefield with X +1/+1 counters on it.

When Hooded Hydra dies, create a 1/1 green Snake creature token for each +1/+1 counter on it.

Morph

As Hooded Hydra is turned face up, put five +1/+1 counters on it.

Whenever Horde Ambusher blocks, it deals 1 damage to you.

Morph—Reveal a red card in your hand. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Horde Ambusher is turned face up, target creature can't block this turn.

, , Sacrifice Horizon Spellbomb: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

When Horizon Spellbomb is put into a graveyard from the battlefield, you may pay . If you do, draw a card.

Target player discards a card, then mills a card.

: Horror of the Dim gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

You have ten seconds to look at and rearrange the cards in your library. At the end of those ten seconds, if you're touching one or more of those cards, shuffle.

, : Target creature doesn't untap during its controller's next untap step.

, : Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

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

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

As long as you control a green or blue permanent, you may cast Hungering Yeti as though it had flash. (You may cast it any time you could cast an instant.)

As Hydradoodle enters the battlefield, roll X six-sided dice. Hydradoodle enters the battlefield with a number of +1/+1 counters on it equal to the total of those results.

Reach, trample

When you cast this spell, you gain half X life and draw half X cards. Round down each time.

Flying, trample

Hydroid Krasis enters the battlefield with X +1/+1 counters on it.

Enchant creature

Enchanted creature has ": This creature deals 1 damage to any target."

: Return Hypervolt Grasp to its owner's hand.

Draw two cards. Then you may discard a nonland card. When you do, Hypothesizzle deals 4 damage to target creature.

Flying

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

When Icefeather Aven is turned face up, you may return another target creature to its owner's hand.

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

When Ichor Rats enters the battlefield, each player gets a poison counter.

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

Whenever Ichorclaw Myr becomes blocked, it gets +2/+2 until end of turn.

Protection from white

Return each creature card with mana value X from your graveyard to the battlefield.

When Imperial Recruiter enters the battlefield, search your library for a creature card with power 2 or less, reveal it, put it into your hand, then shuffle.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Indestructible

Radiance — Until end of turn, target creature and each other creature that shares a color with it gain "This creature can't block."

: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead.

: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)

Counter target spell. If was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value.

Reveal a card from your hand. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle.

Hellbent — If you have no cards in hand, instead search your library for a card, put it into your hand, then shuffle.

Whenever you crank Inflation Station, target creature gets +3/+3 until end of turn.

: Add .

: Inkmoth Nexus becomes a 1/1 Phyrexian Blinkmoth artifact creature with flying and infect until end of turn. It's still a land. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

: Insatiable Souleater gains trample until end of turn. ( can be paid with either or 2 life.)

Put a -1/-1 counter on target creature.

Draw a card.

Exile two target artifacts.

If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.

Target creature gets +4/+4 until end of turn.

Counter target spell. Ionize deals 2 damage to that spell's controller.

: Add .

Flying

Whenever Isperia the Inscrutable deals combat damage to a player, choose a card name. That player reveals their hand. If a card with the chosen name is revealed this way, search your library for a creature card with flying, reveal it, put it into your hand, then shuffle.

Flying

When Isperia's Skywatch enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Untap each creature you control with a +1/+1 counter on it during each other player's untap step.

Undergrowth — When Izoni, Thousand-Eyed enters the battlefield, create a 1/1 black and green Insect creature token for each creature card in your graveyard.

, Sacrifice another creature: You gain 1 life and draw a card.

Choose one —

• Counter target noncreature spell unless its controller pays .

• Izzet Charm deals 2 damage to target creature.

• Draw two cards, then discard two cards.

When Izzet Chronarch enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Izzet Guildgate enters the battlefield tapped.

: Add or .

: Add or .

: Until end of turn, Izzet Keyrune becomes a 2/1 blue and red Elemental artifact creature.

Whenever Izzet Keyrune deals combat damage to a player, you may draw a card. If you do, discard a card.

, : Add .

Whenever Jackal Pup is dealt damage, it deals that much damage to you.

Whenever Jagged Poppet is dealt damage, discard that many cards.

Hellbent — Whenever Jagged Poppet deals combat damage to a player, if you have no cards in hand, that player discards cards equal to the damage.

Whenever you crank Jamming Device, creatures target player controls get -1/-1 until end of turn.

Search your library for up to two creature cards and reveal them. Put one into your hand and the other into your graveyard. Then shuffle.

Flying, vigilance

Whenever Jelenn Sphinx attacks, other attacking creatures get +1/+1 until end of turn.

: Add , , or .

, , Sacrifice Jeskai Banner: Draw a card.