Whenever you cast an instant or sorcery spell, put a charge counter on Geistflame Reservoir.

, , Remove any number of charge counters from Geistflame Reservoir: It deals that much damage to any target.

, : Exile the top card of your library. You may play that card this turn.

Vigilance

Geist-Honored Monk's power and toughness are each equal to the number of creatures you control.

When Geist-Honored Monk enters the battlefield, create two 1/1 white Spirit creature tokens with flying.

Trample

When Geistpack Alpha dies, seek a permanent card with mana value equal to the number of lands you control.

Engulf — When Gelatinous Cube enters the battlefield, exile target non-Ooze creature an opponent controls until Gelatinous Cube leaves the battlefield.

Dissolve — : Put target creature card with mana value X exiled with Gelatinous Cube into its owner's graveyard.

: Gelectrode deals 1 damage to any target.

Whenever you cast an instant or sorcery spell, you may untap Gelectrode.

, , Sacrifice Gem of Becoming: Search your library for an Island card, a Swamp card, and a Mountain card. Reveal those cards, put them into your hand, then shuffle.

All Slivers have ": Add one mana of any color."

Cycling (, Discard this card: Draw a card.)

When you cycle Gempalm Avenger, Soldier creatures get +1/+1 and gain first strike until end of turn.

Cycling (, Discard this card: Draw a card.)

When you cycle Gempalm Polluter, you may have target player lose life equal to the number of Zombies on the battlefield.

Cycling (, Discard this card: Draw a card.)

When you cycle Gempalm Strider, Elf creatures get +2/+2 until end of turn.

: Put a charge counter on Gemstone Array.

Remove a charge counter from Gemstone Array: Add one mana of any color.

Gemstone Mine enters the battlefield with three mining counters on it.

, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

: Creatures you control named Genasi Rabble-Rouser get +1/+0 until end of turn.

: Choose two target blocked attacking creatures. If each of those creatures could be blocked by all creatures that the other is blocked by, each creature that's blocking exactly one of those attacking creatures stops blocking it and is blocking the other attacking creature. Activate only during the declare blockers step.

Whenever a creature you control becomes blocked, it gets +3/+3 until end of turn for each creature blocking it.

Legendary Humans you control have indestructible.

: Exile target card from a graveyard. If it was a creature card, create a 1/1 white Human Soldier creature token.

: The next time a source of your choice would deal damage to you this turn, that damage is dealt to target creature you control instead.

, Sacrifice Generator Servant: Add . If that mana is spent on a creature spell, it gains haste until end of turn. (That creature can attack and as soon as it comes under your control.)

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Menace

At the beginning of your upkeep, you may create a Treasure token. When you do, target opponent creates a tapped Treasure token.

Whenever Generous Plunderer attacks, it deals damage to defending player equal to the number of artifacts they control.

When Generous Stray enters the battlefield, draw a card.

At the beginning of your upkeep, if Genesis is in your graveyard, you may pay . If you do, return target creature card from your graveyard to your hand.

When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library.

Genesis Hydra enters the battlefield with X +1/+1 counters on it.

When you cast this spell, copy it for each time you've cast your commander from the command zone this game.

Reveal cards from the top of your library until you reveal a nonland permanent card. You may put that card onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield on the bottom of your library in a random order.

Reveal the top X cards of your library. You may put any number of permanent cards with mana value X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.

Genestealer's Kiss — Whenever Genestealer Patriarch attacks, put an infection counter on target creature defending player controls.

Children of the Cult — Whenever a creature with an infection counter on it dies, you create a token that's a copy of that creature, except it's a Tyranid in addition to its other types.

Enchant Forest

: Enchanted Forest becomes a 4/4 green Spirit creature until end of turn. It's still a land.

When enchanted Forest is put into a graveyard, you may return Genju of the Cedars from your graveyard to your hand.

Enchant Swamp

: Until end of turn, enchanted Swamp becomes a 2/2 black Spirit creature with ": This creature gets +1/+1 until end of turn." It's still a land.

When enchanted Swamp is put into a graveyard, you may return Genju of the Fens from your graveyard to your hand.

Enchant land

: Enchanted land becomes a legendary 8/12 Spirit creature with trample until end of turn. It's still a land.

When enchanted land is put into a graveyard, you may return Genju of the Realm from your graveyard to your hand.

Trample

Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

First strike

Landfall — Whenever a land enters the battlefield under your control, goad each creature target player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

At the beginning of your end step, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

: Draw a card and put a +1/+1 counter on Geology Enthusiast.

Whenever a player casts an instant or sorcery spell, put a number of charge counters on Geometric Nexus equal to that spell's mana value.

, , Remove all charge counters from Geometric Nexus: Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of charge counters removed this way.

Add . Spend this mana only to cast artifact or creature spells.

Geothermal Crevice enters the battlefield tapped.

: Add .

, Sacrifice Geothermal Crevice: Add .

Whenever you cast a spell during your turn other than your first spell that turn, create a 2/2 blue and black Zombie Rogue creature token.

Whenever a Zombie enters the battlefield under your control, put a +1/+1 counter on it for each other Zombie that entered the battlefield under your control this turn.

Flying

Geralf's Masterpiece gets -1/-1 for each card in your hand.

, Discard three cards: Return Geralf's Masterpiece from your graveyard to the battlefield tapped.

When Geralf's Mindcrusher enters the battlefield, target player mills five cards.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

First strike

When Gerrard, Weatherlight Hero dies, exile it and return to the battlefield all artifact and creature cards in your graveyard that were put there from the battlefield this turn.

Untap target creature. It gets +3/+3 until end of turn.

Trample, haste

You gain 2 life for each card in your hand.

Until end of turn, target creature gets +1/+1 for each creature you control and gains reach.

Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

Flash

When Get Your Head in the Game enters the battlefield, exile target nonland permanent until it (this card) leaves the battlefield, then touch it (this card) to your head. When it (this card) stops touching it (your head), sacrifice it (the card, not your head).

Spree (Choose one or more additional costs.)

+ — Exile target nontoken creature. Return it to the battlefield under its owner's control at the beginning of the next end step.

+ — Destroy target creature if no other creature has greater power.

Other creatures you control get -1/-1.

, : Return target creature card from your graveyard to the battlefield. It gains "If this creature would leave the battlefield, exile it instead of putting it anywhere else." Activate only as a sorcery.

Return up to one target creature card from your graveyard to the battlefield.

Corrupted — For each opponent who has three or more poison counters as you cast this spell, put up to one target creature card from that player's graveyard onto the battlefield under your control.

Protection from permanents with corruption counters on them

+1: Each opponent loses 2 life and you gain 2 life. Put a corruption counter on up to one other target creature or planeswalker.

−3: Gain control of target creature or planeswalker until end of turn. Untap it and put a corruption counter on it. It gains haste until end of turn.

−7: Gain control of each permanent with a corruption counter on it.

Landfall — Whenever a land enters the battlefield under your control, Geyser Glider gains flying until end of turn.