Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, create a 1/1 red Gremlin creature token.

Flying, ward

When Grey Host Reinforcements enters, exile target player's graveyard. Put a number of +1/+1 counters on Grey Host Reinforcements equal to the number of creature cards exiled this way.

: Add .

: Untap target Griffin. If it's a creature, it gets +1/+1 until end of turn.

Enchant creature

Enchanted creature gets +2/+2 and has flying.

When enchanted creature dies, create a 2/2 white Griffin creature token with flying.

As long as you control a Griffin creature, Griffin Rider gets +3/+3 and has flying.

Return a Pirate card from your graveyard to your hand, then do the same for Vampire, Dinosaur, and Merfolk.

Whenever one or more creatures you control deal combat damage to a player, create two Treasure tokens.

, Sacrifice X Treasures: Target creature gets -X/-X until end of turn. Activate only as a sorcery.

Morbid — This spell costs less to cast if a creature died this turn.

Enchant creature

When Grim Reaper's Sprint enters, untap each creature you control. If it's your main phase, there is an additional combat phase after this phase.

Enchanted creature gets +2/+2 and has haste.

Grimgrin, Corpse-Born enters tapped and doesn't untap during your untap step.

Sacrifice another creature: Untap Grimgrin and put a +1/+1 counter on it.

Whenever Grimgrin attacks, destroy target creature defending player controls, then put a +1/+1 counter on Grimgrin.

: Put a charge counter on Grindclock.

: Target player mills X cards, where X is the number of charge counters on Grindclock.

, : Target player mills two cards. If two cards that share a color were milled this way, repeat this process.

, Return Grinning Ignus to its owner's hand: Add . Activate only as a sorcery.

When Grishnákh, Brash Instigator enters, amass Orcs 2. When you do, until end of turn, gain control of target nonlegendary creature an opponent controls with power less than or equal to the amassed Army's power. Untap that creature. It gains haste until end of turn.

: Grizzled Wolverine gets +2/+0 until end of turn. Activate only during the declare blockers step, only if at least one creature is blocking Grizzled Wolverine, and only once each turn.

Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring."

When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.

Flash

When Growing Dread enters, 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.)

Whenever you turn a permanent face up, put a +1/+1 counter on it.

When Growing Rites of Itlimoc enters, look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

At the beginning of your end step, if you control four or more creatures, transform Growing Rites of Itlimoc.

Flying

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)

Whenever Gryffwing Cavalry attacks, you may pay . If you do, target attacking creature without flying gains flying until end of turn.

Flying

Whenever another creature you control dies, put a +1/+1 counter on Guardian Kirin.

Destroy target creature with power 4 or greater.

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.)

Put a +1/+1 counter on target creature.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

When Gulping Scraptrap enters or dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying, first strike, haste

Whenever Gustcloak Sentinel becomes blocked, you may untap it and remove it from combat.

This spell costs less to cast as long as you've drawn two or more cards this turn.

Flying, vigilance

Other Birds you control have vigilance.

: Add .

At the beginning of combat on your turn, each Merfolk creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the exploring creature, then put the card back or put it into your graveyard.)

Whenever Hakbal of the Surging Soul attacks, you may put a land card from your hand onto the battlefield. If you don't, draw a card.

Haste

Halam Djinn gets -2/-2 as long as red is the most common color among all permanents or is tied for most common.

(: Add or .)

As Hallowed Fountain enters, you may pay 2 life. If you don't, it enters tapped.

, , Untap a tapped creature you control: Create a 1/1 green and white Citizen creature token.

, , Untap two tapped creatures you control: Draw a card.

, , Untap fifteen tapped creatures you control: You win the game.

If an opponent would create one or more tokens, they create half that many of each of those kinds of tokens instead, rounded down.

If an opponent would put one or more counters on a permanent or player, they put half that many of each of those kinds of counters on that permanent or player instead, rounded down.

Whenever Hamlet Captain attacks or blocks, other Humans you control get +1/+1 until end of turn.

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.)

Whenever Hammers of Moradin attacks, for each opponent, tap up to one target creature that player controls.

This spell costs less to cast for each creature you control with a +1/+1 counter on it.

Creature spells you cast cost less to cast for each creature you control with a +1/+1 counter on it.

, : Create a 2/2 colorless Homunculus creature token. It must be represented by a unique hand and two fingers at all times, or it ceases to exist.

Trample, haste

Whenever Hanweir, the Writhing Township attacks, create two 3/2 colorless Eldrazi Horror creature tokens that are tapped and attacking.

Flying

Whenever you attack with five or more Soldiers, creatures you control get +1/+1 and gain flying until end of turn.

Protection from non-Spirit creatures

Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.)

Nonbasic lands are Islands.

Target creature you control deals damage equal to its power to target creature or planeswalker you don't control.

Target opponent gains control of target permanent you control.

Choose target creature. You get (three energy counters), then you may pay any amount of . Harnessed Lightning deals that much damage to that creature.

Target player draws three cards and loses 3 life.

Trample

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

Flying

Haughty Djinn's power is equal to the number of instant and sorcery cards in your graveyard.

Instant and sorcery spells you cast cost less to cast.

Flying

As Haunting Apparition enters, choose an opponent.

Haunting Apparition's power is equal to 1 plus the number of green creature cards in the chosen player's graveyard.

Vigilance

Haunting Figment can't be blocked as long as you've cast an instant or sorcery spell this turn.

Each player reveals the top card of their library. For each creature card revealed this way, create a token that's a copy of that card, except it's 1/1, it's a Spirit in addition to its other types, and it has flying. If no creature cards were revealed this way, return Haunting Imitation to its owner's hand.

Choose a creature type. Return up to two creature cards of that type from your graveyard to the battlefield. If this spell was foretold, return all creature cards of that type from your graveyard to the battlefield instead.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Create a 1/1 white Human creature token and a Food token. (Then exile this card. You may cast the creature later from exile.)