At the beginning of combat on your turn, you may pay {X}. When you do, choose up to X. Each mode must have different targets.
• Teach target creature flying.
• Teach target creature lifelink.
• Teach target creature vigilance.

{VP}{VP}{VP}: Genre Blender gets +3/+3 until end of turn. Activate only once each turn.

Exile target spell you don't control. After this turn has ended, its owner may cast that card from exile by discarding a card in addition to paying its other costs.

[+1]: Up to one target creature gets +2/+0 and gains haste until end of turn.
[–1]: Add {R}. If Gericho, Ageless Wanderer entered this turn, add {R}{R} instead.
[0]: Exile Gericho and the top X cards of your library, where X is the number of loyalty counters on him. You may play cards exiled this way until the end of your next turn.

Vigilance
Approval — {1}{G}: Target creature gets +X/+X until end of turn, where X is the number of colors among permanents you control. Activate only once each turn and only as a sorcery.

Search your library for a noncreature, nonland card not named Get Your Wish, reveal it, put it into your hand, then shuffle.
You may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of colors among nontoken permanents you control.

Flash
When Getaway Proxy enters, you may choose another creature you control. Move any number of counters from that creature onto Getaway Proxy. Attach to Getaway Proxy any number of Auras that are attached to that creature. Then return that creature to its owner's hand.

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.

Gleaming Laser deals 4 damage to any target. You gain 4 life. If a permanent dealt damage by Gleaming Laser would die this turn, exile it instead.

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.

Until end of turn, target creature gets +X/+X, where X is the number of differently named lands you control.

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.