When an opponent casts an instant spell, if Hidden Gibbons is an enchantment, Hidden Gibbons becomes a 4/4 Ape creature.

When an opponent casts an artifact spell, if Hidden Guerrillas is an enchantment, Hidden Guerrillas becomes a 5/3 Soldier creature with trample.

When an opponent plays a nonbasic land, if Hidden Herd is an enchantment, Hidden Herd becomes a 3/3 Beast creature.

Hidden Necropolis enters tapped.

: Add .

, , Sacrifice Hidden Necropolis: 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.)

Green creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

Put a card from your hand on top of your library: Prevent all damage that would be dealt by target instant or sorcery spell this turn.

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.)

Put target artifact or enchantment on the bottom of its owner's library.

Destroy target nonblack creature. Its controller loses 2 life.

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.)

Creatures you control gain intimidate until end of turn. (Each of those creatures can't be blocked except by artifact creatures and/or creatures that share a color with it.)

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

I — Destroy each nonland permanent with mana value 1 or less.

II — Exile all graveyards.

III — Exile this Saga, then return it to the battlefield transformed under your control.

If target player has exactly 10 life, Hidetsugu's Second Rite deals 10 damage to that player.

When Hieromancer's Cage enters, exile target nonland permanent an opponent controls until Hieromancer's Cage leaves the battlefield.

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.

: Add .

, Sacrifice a creature: You gain 1 life.

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

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.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional .

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Vigilance

When Highcliff Felidar enters, for each opponent, choose a creature with the greatest power among creatures that player controls. Destroy those creatures.

(: Add or .)

Highland Forest enters tapped.

Highland Weald enters tapped.

: Add or .

Flash

Flying

When High-Speed Hoverbike enters, tap up to one target creature.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Target creature gets +3/+3 until end of turn. You get (two energy counters).

Defender

When Hightide Hermit enters, you get (four energy counters).

Pay : Hightide Hermit can attack this turn as though it didn't have defender.

You may discard a card or sacrifice a land. If you do, draw two cards.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Whenever a nontoken creature you control deals combat damage to an opponent, choose a creature card at random from your library, reveal that card, put it into your hand, then shuffle.

Flying

Whenever you cast a Spirit or Arcane spell, you may exile Hikari, Twilight Guardian. If you do, return it to the battlefield under its owner's control at the beginning of the next end step.

When Hill Giant Herdgorger enters, you gain 3 life.

Flying, trample

Spells you cast cost less to cast for each target.

Spells your opponents cast cost more to cast for each target.

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

Draw a card.

Prevent all combat damage that would be dealt this turn by creatures with no +1/+1 counters on them.

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.

Hipparion can't block creatures with power 3 or greater unless you pay .

Whenever you attack with one or more Lizards, Hired Claw deals 1 damage to target opponent.

: Put a +1/+1 counter on Hired Claw. Activate only if an opponent lost life this turn and only once each turn.

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly choose a card name. You may turn this conspiracy face up any time and reveal that name.)

Whenever a creature you control with the chosen name deals combat damage to a player, you may pay . If you do, draw a card.

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.

Defender

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

Counter target Spirit or Arcane spell.

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

Hissing Quagmire enters tapped.

: Add or .

: Hissing Quagmire becomes a 2/2 black and green Elemental creature with deathtouch until end of turn. It's still a land.

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.

Discover 10. If the discovered card's mana value is less than 10, create a number of tapped Treasure tokens equal to the difference. (To discover 10, exile cards from the top of your library until you exile a nonland card with mana value 10 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.)