When Heart-Piercer Manticore enters, 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.)

When Heavy Infantry enters, tap target creature an opponent controls.

When Heliod, the Radiant Dawn enters, return target enchantment card that isn't a God from your graveyard to your hand.

: Transform Heliod, the Radiant Dawn. Activate only as a sorcery. ( can be paid with either or 2 life.)

Return target creature card with mana value 3 or less from your graveyard to the battlefield tapped.

: Henge Guardian gains trample until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Flying

At the beginning of your end step, each opponent discards a card.

, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

Enchantment spells you cast cost less to cast.

Whenever you cast an enchantment spell, you gain 1 life.

As Heraldic Banner enters, choose a color.

Creatures you control of the chosen color get +1/+0.

: Add one mana of the chosen color.

Enchant creature

Enchanted creature gets +3/+3 unless it shares a color with the most common color among all permanents or a color tied for most common.

When an opponent casts an enchantment spell, if Hidden Ancients is an enchantment, Hidden Ancients becomes a 5/5 Treefolk creature.

Flying

When Hidetsugu and Kairi enters, draw three cards, then put two cards from your hand on top of your library in any order.

When Hidetsugu and Kairi dies, exile the top card of your library. Target opponent loses life equal to its mana value. If it's an instant or sorcery card, you may cast it without paying its mana cost.

Frenzied Metabolism — As an additional cost to cast this spell, you may remove any number of +1/+1 counters from among creatures you control. This spell costs less to cast for each counter removed this way.

Vigilance, reach, ward

Titanic — Hierophant Bio-Titan can't be blocked by creatures with power 2 or less.

Whenever High Priest of Penance is dealt damage, you may destroy target nonland permanent.

(: Add or .)

Highland Forest enters tapped.

Highland Weald enters tapped.

: Add or .

Flying, trample

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

When Hinterland Chef enters the battlefield, draft a card from Hinterland Chef's spellbook. It perpetually becomes a Food artifact in addition to its other types and perpetually gains ", , Sacrifice this creature: You gain 3 life."

Hinterland Harbor enters tapped unless you control a Forest or an Island.

: Add or .

At the beginning of each upkeep, if no spells were cast last turn, transform Hinterland Logger.

When Hired Giant enters, each other player may search their library for a land card and put that card onto the battlefield. Then each player who searched their library this way shuffles.

Whenever another creature dies, you may have Hissing Iguanar deal 1 damage to target player or planeswalker.

Whenever Historian's Boon or another nontoken enchantment you control enters, create a 1/1 white Soldier creature token.

Whenever the final chapter ability of a Saga you control triggers, create a 4/4 white Angel creature token with flying and vigilance.

If you control two or more other lands, Hive of the Eye Tyrant enters tapped.

: Add .

: Until end of turn, Hive of the Eye Tyrant becomes a 3/3 black Beholder creature with menace and "Whenever this creature attacks, exile target card from defending player's graveyard." It's still a land.

Other Goblins you control get +1/+1.

, : Hobgoblin Bandit Lord deals damage equal to the number of Goblins that entered the battlefield under your control this turn to any target.

When Hollowhenge Wrangler enters the battlefield, seek a land card.

Discard a land card: Conjure a card named Hollowhenge Beast into your hand. You may also activate this ability while Hollowhenge Wrangler is in your graveyard.

Enchant creature

Enchanted creature gets +2/+2 and has protection from creatures.

Homura, Human Ascendant can't block.

When Homura dies, return it to the battlefield flipped.

At the beginning of your upkeep, you gain 2 life for each Shrine you control.

During your turn, Hookblade Veteran has flying. (It can't be blocked except by creatures with flying or reach.)

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Trample

, Pay 1 life: Add or .

, , Sacrifice Horizon Canopy: Draw a card.

, : Create a 1/1 colorless Insect artifact creature token with flying and haste named Hornet. Destroy it at the beginning of the next end step.

Haste

Hotheaded Giant enters with two -1/-1 counters on it unless you've cast another red spell this turn.

Double strike

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.)

Flying

When Howling Banshee enters, each player loses 3 life.

Reach (This creature can block creatures with flying.)

When Howling Giant enters, create two 2/2 green Wolf creature tokens.

Huang Zhong, Shu General can't be blocked by more than one creature.

Trample

When Hugs, Grisly Guardian enters, exile the top X cards of your library. Until the end of your next turn, you may play those cards.

You may play an additional land on each of your turns.

Vigilance

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

As long as Hundred-Handed One is monstrous, it has reach and can block an additional ninety-nine creatures each combat.

Hunted Phantasm can't be blocked.

When Hunted Phantasm enters, target opponent creates five 1/1 red Goblin creature tokens.

Denimwalk (This creature can't be blocked as long as defending player is wearing denim.)

, Sacrifice Hydromorph Guardian: Counter target spell that targets a creature you control.

Whenever a player draws their second card each turn, that player exiles the top card of their library.

During each player's turn, that player may cast a spell from among the cards they don't own exiled with Ian Malcolm, Chaotician, and mana of any type can be spent to cast it.

Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it.

Sacrifice two Mountains: Create two 1/1 red Goblin creature tokens.

: Icatian Infantry gains first strike until end of turn.

: Icatian Infantry gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

: Target Soldier creature gets +1/+0 until end of turn.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)