Whenever you cast an instant or sorcery spell, put a counter on Gi-Gecha, Tide of Victory from among flying, vigilance, trample, and +1/+1 that it doesn't have on it.
As long as Gi-Gecha has four or more counters on it, it has hexproof and is an artifact creature.
Crew 3

Whenever one or more creatures you control deal combat damage to an opponent, exile the top card of your library. Then you may create a 1/1 colorless Construct artifact creature token. If you don't, you may play the exiled card until end of turn.

[+1]: Put a +1/+1 counter and your choice of counter from among deathtouch, flying or vigilance on up to one target creature.
[–3]: Draw a card for each kind of counter among permanents you control.
[–8]: You get an emblem with “At the beginning of combat on your turn, you may double the number of each kind of counter on any number of target permanents you control.”

Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
{B}{B}, Exile Gilded Death and six other cards from your graveyard: Create a tapped token that's a copy of Gilded Death.

Whenever you play a card with mana value equal to the number of charge counters on Gilded Font, put a charge counter on it.
{2}, Sacrifice Gilded Font: You draw X cards and gain twice X life, where X is the number of charge counters on Gilded Font.

If you have more life than your starting life total, this spell costs {X} less to cast, where X is equal to the difference.
Trample
When Glacier Guardian enters, you may have it fight target creature you don't control.

Flash
Enchant creature
Enchanted creature gets +0/+2 and has deathtouch.

Glassy Soundvein enters tapped.
When Glassy Soundvein enters, you may pay 1 life. If you do, add one mana of any color other than blue.
{T}: Add {U}.

Indulgence
Whenever you indulge, put a loyalty counter on Glauna, Decadent Demon.
[–1]: Create a 2/1 black Imp creature token with flying and “This creature can't block.”
[–2]: Destroy target creature or planeswalker. Its controller loses 2 life.

Lifelink
When Gleaming Pathlighter enters, exile up to one target card from a graveyard.

Haste
Whenever you cast a spell that targets Glint-Glyph Oracle, you may discard a card. If you do, draw two cards if Glint-Glyph Oracle is attacking or draw a card otherwise.

Glitch, Chaos Redeemed is all colors.
[+2]: Up to one target creature has base power and toughness 4/4 until your next turn.
[–3]: Create three 1/1 white Elemental Bird creature tokens with flying. Scry 3.
[–10]: Add {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}. Draw ten cards.

Flash
Flying

Gloomcover Steppe enters tapped unless you control a basic Plains or a basic Swamp.

Glowsac Webspinner enters with a reach counter on it.
When Glowsac Webspinner enters, you gain 1 life for each different kind of counter among permanents you control.

When Gnosa, Research Executive enters, gain control of target nonland permanent until the end of your next turn. Untap it.
Permanents you control but don't own must be the targets of spells its owner casts if able.

When Go Solo enters, sacrifice any number of creatures. Draw a card for each creature sacrificed this way.
As long as you control exactly one creature, that creature gets +2/+2 and has deathtouch and lifelink.

When Golden Age enters, you may sacrifice a land. If you do, search your library for a land card, put it onto the battlefield, then shuffle.
You've cast a multicolored spell this turn.

At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, put a +1/+1 counter on Goldrune Scribe.

Flying
Whenever Goletre's Disciple enters or attacks, choose a counter on a permanent you control. Put a counter of that kind on target permanent you control if it doesn't have a counter of that kind on it.

Goletre, Perfected Form enters with a lifelink counter, a +1/+1 counter, and a flying counter on it.
Whenever a creature you control attacks, choose a kind of counter on it. You may put a counter of that kind on target creature you control other than that creature.

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 Grassroots Campaigners or 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}