msem-instigator

Equipped creature has haste.
Whenever equipped creature deals combat damage to a player, discard a card. If you do, draw a card.
Equip {1}

(Add a quest counter as this enters. Sacrifice after 5.)
Whenever you cast a spell, add a quest counter.
1 — Discard a card. If you do, draw a card.
2, 3, 4 — Target opponent discards a card, then draws a card. If they discarded a card with greater mana value than each spell you control, remove a quest counter from Gambler's Tournament.
5 — Discard your hand, then draw seven cards.

At the beginning of your upkeep, you win the game if the total mana value of permanents you control is exactly 21. If it's more than 21, sacrifice Gambling Table and all Card tokens you control. Otherwise, create a colorless Card artifact token with mana cost {2} and “{2}, Sacrifice this artifact: Draw a card.”

As Game Trail enters, you may reveal a Mountain or Forest card from your hand. If you don't, Game Trail enters tapped.
{T}: Add {R} or {G}.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Gamhaugen Burns deals 3 damage to any target.

{T}: Surveil 1.
Crew 2
Whenever one or more cards leaves your graveyard, this artifact becomes an artifact creature until end of turn.

When this creature enters, create a 1/1 white Bird creature token with flying.
{3}{W}, Exile this card from your graveyard: Create a 1/1 white Bird creature token with flying. Activate only as a sorcery.

When Gamhaugen Stablehand enters, put a +1/+1 counter on target creature you control. You gain 1 life.

(Transform this if it's not attached to a creature. Pay {R} as a sorcery to unattach it.)
Enchant creature you control
Gamhaugen War Swine's rider gets +1/+1 and has haste.

(Transform this if it's not attached to a creature. Pay {3}{U} as a sorcery to unattach it.)
Enchant creature you control
Gamhaugen Warbeast's rider gets +2/+2 and has flying.

Gangling Titan has menace and deathtouch as long as there are four or more card types among cards in your graveyard.

Ganzorig's Domain enters tapped.
When Ganzorig's Domain enters, you may mill two cards.
{T}: Add {R} or {G}.

First strike
Noncreature spells with mana value 3 or greater cost {1} more to cast.
Creatures with mana value 3 or greater enter tapped.

First strike
Creatures with power greater than Gao'Wu, Master Soothsayer's power can't attack.

As long as you control five or more creatures, if you would create a token, you may instead create Hu Li, a legendary 4/4 white Fox Spirit creature token with flying and lifelink.

Garden Cherub's power and toughness are each equal to the number of creatures you control.
Garden Cherub can't be blocked by creatures with power 2 or less.

{T}: Add one mana of any color.
Whenever you cast a foreshadowed spell, create a 2/2 black Zombie creature token.

Flash

Trample
Cycling {2} ({2}, Discard this card: Draw a card.)

When Garish Gillian enters, tap target land an opponent controls. That land doesn't untap during its controller's next untap step.
Unveil {3}{U}{R} ({3}{U}{R}: Transform this. Unveil only as a sorcery.)

Once each turn, when you cast a creature spell, you may copy it for each other spell you cast this turn. (A copy of a creature spell becomes a token.)
Whenever Garragrok, Horde Tyrant attacks, add {R}{R}{G}{G}. Until end of turn, you don't lose this mana as steps and phases end.

Creatures you control can't be blocked by creature tokens and/or creatures with defender.
At the beginning of your end step, if Garrison Intruder didn't attack this turn, transform it.

Whenever a creature attacks, if its toughness is greater than its power, untap it.

Vigilance
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Whenever an opponent attacks you, create a tapped 1/1 white Soldier creature token with melee. Exile that token at the beginning of your next end step.

When Garrison Warden enters, put a +1/+1 counter on target creature you control.
Surpass {5}{W} ({5}{W}: Transform this. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)