msem-instigator

When Goldhill Guardian enters, choose a creature type.
Goldhill Guardian has protection from creatures of the chosen type. (It can't be blocked, targeted or dealt damage by creatures of the chosen type.)

At the beginning of your end step, you may exile an instant or sorcery card from your graveyard. If you do, search your library for an instant or sorcery card with mana value equal to 1 plus the exiled card's mana value, reveal it, put it into your hand, then shuffle.

Reach, trample
Improve {1}{B/G} ({1}{B/G}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
Whenever one or more +1/+1 counters are put on Gorganith, Ruin Maw, you may search your library and/or graveyard for a creature card with mana value equal to or less than the number of +1/+1 counters on Gorganith and put it onto the battlefield. If you search your library this way, shuffle.

Flash (You may cast this spell any time you could cast an instant.)
When Gorillas in the Mist enters, prevent all combat damage that other creatures would deal this turn.

Creatures you control gain lifelink until end of turn. If {W} was spent to cast Gorran Charge, creatures you control get +2/+2 until end of turn.

{1}, {T}, Move a -1/-1 counter from another creature onto Grace of the Trinity: Another target creature gains indestructible until end of turn.

This spell costs {2} less to cast if you control a legendary creature.
Return up to X target instant and/or sorcery cards from your graveyard to your hand. Draw X cards. Exile Grand Arcana.

Whenever a creature enters, it fights another target creature of its controller's choice.

Each creature you control that's enchanted or is an enchantment gets +1/+1.
{2}{W}{W}: You may reveal an enchantment card you own from outside the game and put it into your hand.

Flying
Grandstanding Huma can block only creatures with flying.
{2}{R}{R}, Exile three instant and/or sorcery cards from your graveyard: Return Grandstanding Huma from your graveyard to the battlefield tapped and attacking. Activate this ability only during your declare attackers step.

This spell costs {1} less to cast for each counter on permanents you control.
Trample
{G}{G}, Remove ten counters from among permanents you control, Exile Grasp of the Stageless from your graveyard: Create a token that's a copy of Grasp of the Stageless. Activate only as a sorcery.

When Grave Wrangler enters, you may return target creature card from your graveyard to your hand.

Whenever Gravelocked Seeker blocks, return target creature card from your graveyard to the battlefield blocking a creature that's attacking you (even if that block would be illegal).

Menace
When Graygulch Outcast dies, each opponent loses 3 life.

If it isn't an extra turn, take an extra turn after this one. (Cast a copy of this spell once while this creature is on the battlefield.)

This spell can't be countered.
Protection from blue and from black (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything blue or black.)

As an additional cost to cast this spell, tap three untapped creatures you control with power 1 or less.
Search your library for a creature card, put it onto the battlefield, then shuffle.

Flying
When Greater Swooprat enters, creatures your opponents control get -1/-1 until end of turn.

Flying, trample
When Greedstoker Demon enters, you lose X life and create X Treasure tokens, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)
You can't sacrifice more than one Treasure each turn.

Whenever Green Pelt Hart or another Elk creature you control deals combat damage to a player, draw that many cards.

Haste
When Greenwood Outrider enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of storied permanents you control. (Enchantments and legendary permanents are storied.)

Flying, haste
Whenever Grieving Revenant attacks, it deals 1 damage to each other creature you control.

Destroy target creature or planeswalker. Create a Treasure token.

When Grim Festivities enters or at beginning of your upkeep, you may return a creature card from your graveyard to the battlefield under your control. If you do, each opponent may return a creature card from their graveyard to their hand.

Whenever another nonland creature you control dies, return it to the battlefield tapped with a sapling counter on it. It becomes an Animus land named Bitter Hazel, loses all other card types, and gains “{T}: Add {G}” and “Pay this card's mana cost: This land becomes a creature until end of turn. It's still a land.”