When Gwyllion Hedge-Mage enters the battlefield, if you control two or more Plains, you may create a 1/1 white Kithkin Soldier creature token.

When Gwyllion Hedge-Mage enters the battlefield, if you control two or more Swamps, you may put a -1/-1 counter on target creature.

Whenever Haazda Marshal and at least two other creatures attack, create a 1/1 white Soldier creature token with lifelink.

When Hag Hedge-Mage enters the battlefield, if you control two or more Swamps, you may have target player discard a card.

When Hag Hedge-Mage enters the battlefield, if you control two or more Forests, you may put target card from your graveyard on top of your library.

Halimar Depths enters the battlefield tapped.

When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order.

: Add .

When Halimar Tidecaller enters the battlefield, you may return target card with awaken from your graveyard to your hand.

Land creatures you control have flying.

Room abilities of dungeons you own trigger an additional time.

Each other creature you control that's a Zombie or Mutant gets +X/+X, where X is the number of counters on Hancock, Ghoulish Mayor.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

As Hangman enters the battlefield, secretly note a word with six to eight letters.

: Target player who doesn't control Hangman guesses the noted word or an unguessed letter in that word. If they guess wrong, put a +1/+1 counter on Hangman. Any player may activate this ability.

When a player guesses the noted word or all of its letters, sacrifice Hangman.

Reach

At the beginning of combat on your turn, another target creature you control gets +1/+0 until end of turn.

, , Discard a card: Until end of turn, if you tap a land for mana, it produces one mana of a color of your choice instead of any other type and amount.

Equipped creature gets +4/+4.

: Until end of turn, Haunted Plate Mail becomes a 4/4 Spirit artifact creature that's no longer an Equipment. Activate only if you control no creatures.

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

When Hazezon Tamar enters the battlefield, create X 1/1 Sand Warrior creature tokens that are red, green, and white at the beginning of your next upkeep, where X is the number of lands you control at that time.

When Hazezon leaves the battlefield, exile all Sand Warriors.

When Heart-Piercer Manticore enters the battlefield, you may sacrifice another creature. When you do, Heart-Piercer Manticore deals damage equal to that creature's power to any target.

Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Manticore with no mana cost. Embalm only as a sorcery.)

Equipped creature gets +1/+1.

As long as equipped creature is a Human, it gets an additional +1/+1.

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

Equipped creature gets +1/+1.

Equipped creature can't be blocked by creatures with power 4 or greater.

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

, : Return target permanent to its owner's hand. Activate only if you control four or more snow permanents.

Whenever you cycle or discard a card, Hekma Sentinels gets +1/+1 until end of turn.

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

Multi-threat Eliminator — Hexmark Destroyer can't be blocked except by six or more creatures.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

: Add .

, Sacrifice a creature: You gain 1 life.

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Hired Muscle.

At the beginning of the end step, if there are two or more ki counters on Hired Muscle, you may flip it.

Whenever Hiveheart Shaman attacks, you may search your library for a basic land card that doesn't share a land type with a land you control, put that card onto the battlefield, then shuffle.

: Create a 1/1 green Insect creature token. Put X +1/+1 counters on it, where X is the number of basic land types among lands you control. Activate only as a sorcery.

Hexproof

Other permanents you control have hexproof.

At the beginning of combat on your turn, put two +1/+1 counters on each creature you control.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Homarid enters the battlefield with a tide counter on it.

At the beginning of your upkeep, put a tide counter on Homarid.

As long as there is exactly one tide counter on Homarid, it gets -1/-1.

As long as there are exactly three tide counters on Homarid, it gets +1/+1.

Whenever there are four or more tide counters on Homarid, remove all tide counters from it.

: Tap target green creature.

: Homarid Warrior gains shroud until end of turn and doesn't untap during your next untap step. Tap Homarid Warrior. (A creature with shroud can't be the target of spells or abilities.)

Creatures you control get +2/+2 and have flying and ": This creature gets +1/+0 until end of turn."

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

When Hopeless Nightmare enters the battlefield, each opponent discards a card and loses 2 life.

When Hopeless Nightmare is put into a graveyard from the battlefield, scry 2.

: Sacrifice Hopeless Nightmare.

Ravenous (This creature enters the battlefield with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)

Endless Swarm — Whenever a land enters the battlefield under your control, you may pay . If you do, return Hormagaunt Horde from your graveyard to your hand.

, : 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.)

Destroy target Human creature.

Menace

When Hunted Nightmare enters the battlefield, target opponent puts a deathtouch counter on a creature they control.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, other creatures you control get +X/+X until end of turn, where X is the number of times this creature has mutated.

At the beginning of your end step, if you've cast a noncreature spell this turn, reveal the top five cards of your library. For each card type among noncreature spells you've cast this turn, you may put a card of that type from among the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)

When Hydra Broodmaster becomes monstrous, create X X/X green Hydra creature tokens.

Each +1/+1 counter on a creature you control is also a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, : Roll two six-sided dice. For each odd result, put a +1/+1 counter on a creature of your choice. Activate only as a sorcery.

Flash

When Illicit Masquerade enters the battlefield, put an impostor counter on each creature you control.

Whenever a creature you control with an impostor counter on it dies, exile it. Return up to one other target creature card from your graveyard to the battlefield.

: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on . If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

Create three 0/0 white Spirit creature tokens with flying.

Creatures target opponent controls attack this turn if able. During that player's next untap step, creatures they control don't untap.

Cycling (, Discard this card: Draw a card.)

: Put a +1/+1 counter on target creature for each Elf you control.

Double strike

Whenever a Samurai or Warrior you control attacks alone, draft a card from Imperial Blademaster's spellbook.

, Sacrifice Implement of Malice: Target player discards a card. Activate only as a sorcery.

When Implement of Malice is put into a graveyard from the battlefield, draw a card.

Eminence — Whenever another nontoken Wizard enters the battlefield under your control, if Inalla, Archmage Ritualist is in the command zone or on the battlefield, you may pay . If you do, create a token that's a copy of that Wizard. The token gains haste. Exile it at the beginning of the next end step.

Tap five untapped Wizards you control: Target player loses 7 life.

Enchant creature

Creatures you control that are enchanted get +1/+1 and can't be blocked except by creatures with defender.

Visit — Draw a card.

Lights — 3, 6

Visit — Draw a card.

Lights — 5, 6

You may pay rather than pay this spell's mana cost.

If the cost was paid, you draw three cards, then an opponent creates two Treasure tokens and they scry 2. If that cost wasn't paid, you draw X cards.