Sliver creatures you control have ", Discard a card: Draw a card."

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.)

Flash (You may cast this spell any time you could cast an instant.)

Flying

When Hollowhenge Spirit enters, remove target attacking or blocking creature from combat.

, : Tap target creature. If that creature is a Zombie, exile it.

: Tap target green creature.

Put a +1/+1 counter on target creature you control. It gains vigilance until end of turn.

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

Whenever one or more nontoken creatures you control die, investigate. This ability triggers only once each turn. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Whenever you draw your second card each turn, create a token that's a copy of this creature.

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

At the beginning of your upkeep, create a 1/1 colorless Spirit creature token for each Shrine you control.

At the beginning of your upkeep, draw a card for each Shrine you control.

When Honest Rutstein enters, return target creature card from your graveyard to your hand.

Creature spells you cast cost less to cast.

The next time a source of your choice would deal damage to any target this turn, prevent that damage. If damage from a red source is prevented this way, Honorable Passage deals that much damage to the source's controller.

You gain 4 life. Bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

When Hooded Assassin enters, choose one —

• Put a +1/+1 counter on Hooded Assassin.

• Destroy target creature that was dealt damage this turn.

Whenever you draw a card, you may put a hoofprint counter on Hoofprints of the Stag.

, Remove four hoofprint counters from Hoofprints of the Stag: Create a 4/4 white Elemental creature token with flying. Activate only during your turn.

Enchant creature

Enchanted creature gets +1/+1 for each creature you control.

As long as enchanted creature is a Human, it has first strike.

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.

Vigilance, trample, haste

: You may play target Elemental card from your graveyard without paying its mana cost.

Flying

Other Zombies you control have flying.

Whenever one or more Zombies you control deal combat damage to one or more of your opponents, you may draw cards equal to the number of opponents dealt damage this way. If you do, discard that many cards.

Flying

When Horizon Scholar enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Boast — : Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Activate only if this creature attacked this turn and only once each turn.)

If you would lose unspent mana, that mana becomes colorless instead.

Equipped creature gets +1/+1 for each creature you control.

Equip

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

Menace

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

When Horned Stoneseeker leaves the battlefield, sacrifice a Powerstone.

Defender (This creature can't attack.)

Whenever Hornet Nest is dealt damage, create that many 1/1 green Insect creature tokens with flying and deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

Counter target creature spell. You create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

If you control a Swamp, destroy target nonblack creature.

Splice onto Arcane—Exile four cards from your graveyard. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Lifelink

Whenever Horrid Shadowspinner attacks, you may draw cards equal to its power. If you do, discard that many cards.

Sacrifice a Swamp: Regenerate target black creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Return up to two target creatures to their owners' hands. Scry 1. The Ring tempts you.

Whenever you attack, put a +1/+1 counter on target attacking creature.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

: Add .

, Exile a land card from your graveyard: Hostile Desert becomes a 3/4 Elemental creature until end of turn. It's still a land.

When Hostile Investigator enters, target opponent discards a card.

Whenever one or more players discard one or more cards, investigate. This ability triggers only once each turn. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Exile the top three cards of your library in a face-down pile, then exile the top three cards of your library in another face-down pile. Look at the cards in each pile, then turn a pile of your choice face up. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. You lose 3 life.

Up to one target creature has base power and toughness 1/1 until end of turn. Up to one other target creature has base power and toughness 4/4 until end of turn. Then Hostile Takeover deals 3 damage to each creature.

When Hot Pursuit enters, suspect target creature an opponent controls. As long as Hot Pursuit remains on the battlefield, that creature is also goaded.

At the beginning of combat on your turn, if two or more players have lost the game, gain control of all goaded and/or suspected creatures until end of turn. Untap them. They gain haste until end of turn.

Enchant land you control

Enchanted land has ": Prevent the next 1 damage that would be dealt to any target this turn."

Hotshot Mechanic crews Vehicles as though its power were 2 greater.

Delirium — Hound of the Farbogs has menace as long as there are four or more card types among cards in your graveyard. (A creature with menace can't be blocked except by two or more creatures.)

Search your library for up to two land cards, put them onto the battlefield tapped, then shuffle. Then if you control three or more Deserts, create two 2/2 black Zombie creature tokens.

Survival — At the beginning of your second main phase, if House Cartographer is tapped, reveal cards from the top of your library until you reveal a land card. Put that card into your hand and the rest on the bottom of your library in a random order.

Flying

Hoverguard Observer can block only creatures with flying.

Flying

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

: Put target card from a graveyard on the bottom of its owner's library.

Return CARDNAME to its owner's hand.

Flying

When Howling Banshee enters, each player loses 3 life.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Howlpack of Estwald.

: Put target creature card from your graveyard on top of your library. Activate only during your turn, before attackers are declared.

+2: Put two +1/+1 counters on up to one target Dinosaur you control.

−3: Target Dinosaur you control deals damage equal to its power to target creature you don't control.

−7: Dinosaurs you control get +4/+4 until end of turn.