Flying, vigilance

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Flying

: Put a +1/+1 counter on another target creature with flying.

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.)

When Herbology Instructor enters, you gain 3 life.

: Transform Herbology Instructor. Activate only as a sorcery. ( can be paid with either or 2 life.)

Domain — Create a 3/3 green Beast creature token for each basic land type among lands you control.

, Discard Herd Migration: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 3 life.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, you may exile your hand. If you do, draw three cards.

Flying

Each creature spell you cast has emerge. The emerge cost is equal to its mana cost.

Enchant creature

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

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.

Whenever one or more cards are put into exile from your hand or a spell or ability you control exiles one or more permanents from the battlefield, put that many +1/+1 counters on Hero of Bretagard.

As long as Hero of Bretagard has five or more counters on it, it has flying and is an Angel in addition to its other types.

As long as Hero of Bretagard has ten or more counters on it, it has indestructible and is a God in addition to its other types.

Whenever you cast a multicolored spell, create a 1/1 white Human creature token.

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

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

When Heroes of the Revel enters, create a 1/1 red Satyr creature token with "This creature can't block."

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

Create two 1/1 white Soldier creature tokens. Until end of turn, creatures you control get +1/+1 and gain haste. (They can attack and this 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.

Sacrifice any number of lands. Reveal the top X cards of your library, where X is the number of lands sacrificed this way. Choose any number of artifact and/or land cards revealed this way. Put all nonland cards chosen this way onto the battlefield, then put all land cards chosen this way onto the battlefield tapped, then put the rest on the bottom of your library in a random order.

: Remove up to X counters from target permanent. For each counter removed this way, Hex Parasite gets +1/+0 until end of turn. ( can be paid with either or 2 life.)

When Hexgold Slith enters, you get (two energy counters).

Whenever Hexgold Slith attacks, you may pay . If you do, it gains first strike until end of turn.

Whenever Hexgold Slith deals combat damage to a player, put a +1/+1 counter on it.

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

All Slivers have "Pay 2 life: Return this permanent to its owner's hand."

Hickory Woodlot enters tapped with two depletion counters on it.

, Remove a depletion counter from Hickory Woodlot: Add . If there are no depletion counters on Hickory Woodlot, sacrifice it.

Hidden Cataract enters tapped.

: Add .

, , Sacrifice Hidden Cataract: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Flash

When Hidden Footblade enters, attach it to target creature you control. That creature gains first strike until end of turn.

Equipped creature gets +1/+0 and has haste.

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

Revolt — When Hidden Herbalists enters, if a permanent you controlled left the battlefield this turn, add .

When an opponent controls a creature with power 4 or greater, if Hidden Predators is an enchantment, Hidden Predators becomes a 4/4 Beast creature.

Whenever an opponent plays a land, if Hidden Stag is an enchantment, Hidden Stag becomes a 3/2 Elk Beast creature.

Whenever you play a land, if Hidden Stag is a creature, Hidden Stag becomes an enchantment.

You may tap or untap target permanent, then you may tap or untap another target permanent.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

All creatures get -2/-2 until end of turn.

Splice onto Arcane (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.)

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.

, 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.

Draw two cards.

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

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

: Add .

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

Flying

When High Fae Negotiator enters, if it was bargained, each opponent loses 3 life and you gain 3 life.

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

Target creature gets +1/+3 and gains reach until end of turn. Untap it.

All targeted spells and abilities cost less and have their targets chosen randomly.

Flying, trample

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle.

: Target Ninja creature can't be blocked this turn.

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

Counter target spell that targets you or a permanent you control.

Draw a card.

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

Flying

Hinterland Drake can't block artifact creatures.

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

Hinterland Scourge must be blocked if able.

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

Defender

, : Target opponent loses 2 life, then reveals a card at random from their hand.

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.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Create a 2/2 white Knight creature token with vigilance.

III — Knights you control get +2/+1 until end of turn.