msem-instigator

Whenever Gifted Swordsman attacks, upgrade it. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• First strike

When Giku Weaponsmith enters, create two colorless Equipment artifact tokens with “Equipped creature gets +1/+1” and equip {1}.

Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)
When Gilded Champion becomes renowned, you may search your library for an Equipment or Aura card, reveal it, put it into your hand, then shuffle.

Vigilance, lifelink

Flying
When Gilded Guardian dies, you may search your library for a legendary card, reveal it, put it into your hand, then shuffle.

When Gilded Yak enters, you gain 3 life.

Flash
Players can't discard cards.
Whenever Gim-Chimya, the Invisible attacks, it can't be blocked this turn unless defending player pays {1} for each card in your hand.

When Gitaxian Reprocessor enters, if you cast it, choose one —
• Create a token that's a copy of another target creature, except it's an artifact and isn't a creature.
• Create a token that's a copy of target noncreature artifact, except it's a 2/2 creature in addition to its other types.

{2}{W}, Sacrifice Gleamhorn Elk: Destroy target artifact or enchantment.

Whenever you draw your second card each turn, other creatures you control get +1/+1 and gain indestructible until end of turn.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Flying
Whenever an opponent casts a spell, copy it. You may choose new targets for the copy.

Trial 3 (As you cast this spell, an opponent of your choice may pay 3 life. If they don't, they fail the trial.)
When Glimmering Prosecutor enters, if the trial was failed, create two 1/1 black Devil creature tokens.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever Glimmerwing Trickster deals combat damage to a player, scry 2.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever Glintfeather Sage or another creature with flying you control dies, you may pay {1}. If you do, draw a card.

Resolute — At the beginning of combat on your turn, if Glisterhorn's power is greater than its base power, tap target creature an opponent controls.

Vigilance
Whenever Glittering Narwhal is dealt damage, create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)

Gloam Gullet gets +1/+1 and has menace as long as you own a land card in exile or in your graveyard.

When Gluttonous Empath enters, gain control of target nonland permanent for as long as you control Gluttonous Empath.

When Goblin Sniper dies, you may pay {R}. If you do, it deals 2 damage to target opponent or planeswalker.

Haste
Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)
Whenever Goblin War Chariot becomes crewed, untap each creature that crewed it with mana value 1 or less. This ability triggers only once each turn.
Crew 3

At the beginning of your upkeep, you may discard a card. If you do, draw a card.
{T}: You may put a creature card from your hand onto the battlefield. If you do, put a +1/+1 counter on that creature.

Concord — When Gold Pelt Responders enters, if there are four or more card types among permanents you control, you may exile target nonland permanent an opponent controls with mana value 4 or less until Gold Pelt Responders leaves the battlefield.