Enchant creature
When Grasp of the Yeti enters, you may destroy target creature with flying, artifact, or enchantment.
Enchanted creature gets +3/+3.

Flash
When Grasping Ancient enters, exile up to one target instant or sorcery spell.
Whenever Grasping Ancient attacks, you may cast the exiled card without paying its mana cost.
Spellcharge 4

Landfall — Whenever a land you control enters, make a pledge.

At the beginning of combat on your turn, put a +1/+1 counter on equipped creature.
Equipped creature has flying as long as it has two or more +1/+1 counters on it.
Equipped creature has double strike as long as it has four or more +1/+1 counters on it.
Equip {2}

When Gray Merchant of Asphodel enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way.

Whenever Grazing Yaks becomes tapped, if you have at least 3 life more than your starting life total, put a +1/+1 counter on it.
{T}: You gain 1 life.

When Grim Physician dies, target creature an opponent controls gets -1/-1 until end of turn.

This land enters tapped.
Level up {R}{R}{R}
[level 1-2] Menace
This land is also a creature.
[level 3+] Menace
This land is also a creature.

Level up {1}{R}
[level 2-5] Reach
[level 6+] Reach, trample

Level up {2}{B}
[level 1-2] This creature gets +1/+1 for each creature and/or enchantment card in your graveyard.
[level 3+] This creature gets +1/+1 for each creature and/or enchantment card in all graveyards.

Whenever you cast a noncreature spell, create a red Subroutine enchantment token named BOOST with “Whenever this Subroutine runs, add {R}.”

Groupthink Tank enters tapped.
{T}: Add {W} or {B}.
{4}: Make a pledge. Activate only as a sorcery.

Search your library for a basic land card, put it into the battlefield tapped, then shuffle. If this spell's flashback cost was paid, search your library for a land card rather than a basic land card.
Flashback—{G}, Sacrifice a land.

Amity — Whenever you attack with Growing Gecko and exactly one other creature, they both get +1/+1 until end of turn. When Growing Gecko deals combat damage to a player this combat, you may transform it.

Search your library for up to two Forest cards, reveal them, put them into your hand, then shuffle.

Favored
Legendary creatures you control have trample.

When Gubernatorial Fundraiser enters, make a pledge.
Whenever you spend three or more colors of mana to cast a spell, create a Treasure token.

Flash
Gulping Meqmaw's power is equal to the total number of permanents with flash you control and instant cards in your graveyard.
Whenever you cast a spell during an opponent's turn, mill two cards.

Lifelink
Pay the equip cost of an Equipment you control: Return Gutwrenched Martyr from your graveyard to the battlefield with a finality counter on it. Attach that Equipment to it. Activate only as a sorcery.

Whenever you attack, attacking creatures you control get +1/+1 until end of turn.

Revered
Flying
If this creature would deal damage to a permanent or player, it deals double that damage instead.

Hallowed Chamber enters tapped unless you control a basic non-Swamp land.
{T}: Add {B}.
{1}, {T}, Sacrifice Hallowed Chamber: Create two Treasure tokens.

Target creature gets +4/+4 until end of turn.

Corrupt — Destroy target creature if it has power 3 or less or if you control a permanent with greater mana value than this spell.

Surveil 1, then draw a card. Exile Harbor Mail with a stamp counter on it.
When you cast a spell for its surface cost, if Harbor Mail is exiled with a stamp counter, you may pay {U} and put it into your graveyard. If you do, surveil 1, then draw a card.