You may cast Haakon, Stromgald Scourge from your graveyard, but not from anywhere else.

As long as Haakon is on the battlefield, you may cast Knight spells from your graveyard.

When Haakon dies, you lose 2 life.

Tap an untapped creature you control: Target player mills a card.

Haktos the Unscarred attacks each combat if able.

As Haktos enters, choose 2, 3, or 4 at random.

Haktos has protection from each mana value other than the chosen number.

: Add .

, : Put target enchantment card from your graveyard on top of your library.

: Add .

, : Add one mana of any color.

, : Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

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

Other creatures you control with infect get +1/+1.

Whenever you cast a creature spell with infect, target player gets a poison counter.

All artifacts have shroud. (They can't be the targets of spells or abilities.)

Whenever Hapatra, Vizier of Poisons deals combat damage to a player, you may put a -1/-1 counter on target creature.

Whenever you put one or more -1/-1 counters on a creature, create a 1/1 green Snake creature token with deathtouch.

You may cast Harbinger of the Tides as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)

When Harbinger of the Tides enters, you may return target tapped creature an opponent controls to its owner's hand.

Whenever Hardened Escort attacks, another target creature you control gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Whenever you cast an instant or sorcery spell from your hand, you may cast target card with the same name as that spell from your graveyard. (You still pay its costs.)

Vigilance, reach

When Harold and Bob, First Numens dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has ‘: Add three mana of any one color. You get two rad counters.'" Harold and Bob loses all other abilities.

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Trample

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

: Put target creature card from your graveyard on top of your library.

Visit — Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of your next end step.

Lights — 4, 6

Whenever Hauntwoods Shrieker attacks, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

: Reveal target face-down permanent. If it's a creature card, you may turn it face up.

: Add .

: Add one mana of any color. Spend this mana only to cast a Dragon creature spell.

, , Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.

Return up to two target creature cards from your graveyard to your hand. Each opponent loses 2 life and you gain 2 life.

Shuffle your library, then exile the top four cards. You may cast any number of spells with mana value 5 or less from among them without paying their mana costs. Lands you control don't untap during your next untap step.

Headstrong Brute can't block.

Headstrong Brute has menace as long as you control another Pirate.

This spell costs less to cast, where X is the number of cards in your graveyard that are instant cards, sorcery cards, and/or have an Adventure.

Creature spells you cast cost less to cast.

Creatures you control get -1/-1.

When Hedonist's Trove enters, exile target opponent's graveyard.

You may play lands from among cards exiled with Hedonist's Trove.

You may cast spells from among cards exiled with Hedonist's Trove. You can't cast more than one spell this way each turn.

Indestructible

As long as your devotion to white is less than five, Heliod isn't a creature. (Each in the mana costs of permanents you control counts toward your devotion to white.)

Other creatures you control have vigilance.

: Create a 2/1 white Cleric enchantment creature token.

Enchant creature

Heliod's Punishment enters with four task counters on it.

Enchanted creature can't attack or block. It loses all abilities and has ": Remove a task counter from Heliod's Punishment. Then if it has no task counters on it, destroy Heliod's Punishment."

Flying

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Whenever an opponent casts a spell during your turn, draw a card.

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

Flying

Whenever you cast a spell that targets Hero of the Winds, creatures you control get +1/+0 until end of turn.

Flying

, Exile Heron-Blessed Geist from your graveyard: Create two 1/1 white Spirit creature tokens with flying. Activate only if you control an enchantment and only as a sorcery.

Cast this spell only if you've cast another spell this turn.

Whenever one or more creatures you control become blocked, each blocking creature gets -1/-1 until end of turn.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever you pay Hibernation's End's cumulative upkeep, you may search your library for a creature card with mana value equal to the number of age counters on Hibernation's End, put it onto the battlefield, then shuffle.

Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, create a 1/1 colorless Servo artifact creature token.

, Sacrifice a creature: Scry 1.

, Sacrifice a creature: Scry 2.

, : Exile the top card of your library. You may play that card this turn. When you exile a nonland card this way, Hidetsugu, Devouring Chaos deals damage equal to the exiled card's mana value to any target.

When Hierophant's Chalice enters, target opponent loses 1 life and you gain 1 life.

: Add .

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 reveals their hand. That player discards all nonland cards with the same name as another card in their hand.

Whenever Historian of Zhalfir attacks, if you control a Teferi planeswalker, draw a card.

Enchant artifact or creature

When Historian's Wisdom enters, if enchanted permanent is a creature with the greatest power among creatures on the battlefield, draw a card.

As long as enchanted permanent is a creature, it gets +2/+1.

Tap target creature. Scry 1.

Draw a card.

Flying

: Destroy target artifact. Hoard-Smelter Dragon gets +X/+0 until end of turn, where X is that artifact's mana value.

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

Enchant creature or planeswalker

When Hold for Questioning enters, tap enchanted permanent and investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Enchanted permanent doesn't untap during its controller's untap step and its activated abilities can't be activated.

At the beginning of your upkeep, if you have no cards in hand, each opponent loses 2 life.

At the beginning of each opponent's upkeep, if that player has no cards in hand, they lose 2 life.

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.)

Enchant creature

Enchanted creature gets +1/+2.

Homura, Human Ascendant can't block.

When Homura dies, return it to the battlefield flipped.

At the beginning of your upkeep, target opponent discards a card for each Shrine you control.