Flying

Gadrak, the Crown-Scourge can't attack unless you control four or more artifacts.

At the beginning of your end step, create a Treasure token for each nontoken creature that died this turn. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

As an additional cost to cast this spell, sacrifice five lands.

Search your library for a land card of each basic land type, put those cards onto the battlefield, then shuffle.

Whenever Galadriel, Gift-Giver enters or attacks, choose one —

• Put a +1/+1 counter on another target creature.

• Create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

• Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Flying

Whenever Ganax, Astral Hunter or another Dragon you control enters, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Choose a Background (You can have a Background as a second commander.)

At the beginning of your upkeep, you may sacrifice a Forest. If you sacrifice a snow Forest this way, Gargantuan Gorilla gains trample until end of turn. If you don't sacrifice a Forest, sacrifice Gargantuan Gorilla and it deals 7 damage to you.

: Gargantuan Gorilla deals damage equal to its power to another target creature. That creature deals damage equal to its power to Gargantuan Gorilla.

+1: Create a 1/1 black Wolf creature token with deathtouch.

−1: Sacrifice a creature. If you do, search your library for a creature card, reveal it, put it into your hand, then shuffle.

−3: Creatures you control gain trample and get +X/+X until end of turn, where X is the number of creature cards in your graveyard.

Sacrifice a creature: Destroy target artifact. Activate only during your upkeep and only once each turn.

Kicker (You may pay an additional as you cast this spell.)

When Gatekeeper of Malakir enters, if it was kicked, target player sacrifices a creature.

Gateway Plaza enters tapped.

When Gateway Plaza enters, sacrifice it unless you pay .

: Add one mana of any color.

, Sacrifice Gauntlets of Chaos: Exchange control of target artifact, creature, or land you control and target permanent an opponent controls that shares one of those types with it. If those permanents are exchanged this way, destroy all Auras attached to them.

, , 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.

Gemstone Mine enters 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.

, 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.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I, II, III — Create a 3/3 black Dalek artifact creature token with menace for each lore counter on Genesis of the Daleks.

IV — Target opponent faces a villainous choice — Destroy all Dalek creatures and each of your opponents loses life equal to the total power of Daleks that died this turn, or destroy all non-Dalek creatures.

Zombies you control have flying.

, , Sacrifice another nontoken creature: Create an X/X blue Zombie creature token, where X is the sacrificed creature's toughness.

Flash

When Get Your Head in the Game enters, 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).

Ghave, Guru of Spores enters with five +1/+1 counters on it.

, Remove a +1/+1 counter from a creature you control: Create a 1/1 green Saproling creature token.

, Sacrifice a creature: Put a +1/+1 counter on target creature.

, Sacrifice Ghitu Fire-Eater: It deals damage equal to its power to any target.

When Ghost Council of Orzhova enters, target opponent loses 1 life and you gain 1 life.

, Sacrifice a creature: Exile Ghost Council of Orzhova. Return it to the battlefield under its owner's control at the beginning of the next end step.

: Exile target card from a graveyard.

, , Sacrifice Ghost Vacuum: Put each creature card exiled with Ghost Vacuum onto the battlefield under your control with a flying counter on it. Each of them is a 1/1 Spirit in addition to its other types. Activate only as a sorcery.

Create X 2/2 black Zombie creature tokens with decayed, where X is half the number of creature cards in your graveyard, rounded up. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

For each player, choose a creature card in that player's graveyard. Put those cards onto the battlefield under your control. They're black Zombies in addition to their other colors and types and they gain decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

You may sacrifice two Foods. If you do, create a 7/7 green Giant creature token. Otherwise, create three Food tokens. (They're artifacts with ", , Sacrifice this artifact: You gain 3 life.")

Equipped creature gets +2/+1.

Whenever equipped creature deals combat damage to a creature, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Target opponent sacrifices a creature that attacked or blocked this turn. If you control a Gideon planeswalker, that player sacrifices two of those creatures instead.

Exile target creature. Create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")

Flying

When Gilded Drake enters, exchange control of Gilded Drake and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice Gilded Drake. This ability still resolves if its target becomes illegal.

When Gilded Pinions enters, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Equipped creature has flying.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

When Gingerbread Hunter enters, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

When Girder Goons dies, create a tapped 2/2 black Rogue creature token.

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Menace

At the beginning of each combat, if Gitrog, Horror of Zhava is untapped, any opponent may sacrifice a creature. If they do, tap Gitrog, Horror of Zhava, then seek a land card and put it onto the battlefield tapped.

Whenever a land enters the battlefield under your control, it perpetually gains ", , Sacrifice this land: Draw a card."

Choose two —

• Put two +1/+1 counters on up to one creature. It gains lifelink until end of turn.

• Destroy each creature with power 2 or less.

• Return up to two creature cards from your graveyard to your hand.

• Each opponent sacrifices a creature with the highest power among creatures they control.

Sacrifice a snow Mountain: Prevent all combat damage that would be dealt this turn.

At the beginning of your upkeep, sacrifice Glaciers unless you pay .

All Mountains are Plains.

Whenever you cast a colorless spell, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add ."

Whenever another colorless creature you control enters, Glaring Fleshraker deals 1 damage to each opponent.

When Glassblower's Puzzleknot enters, scry 2, then you get . (You get two energy counters. To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

, Sacrifice Glassblower's Puzzleknot: Scry 2, then you get .

Defender

When Gleaming Barrier dies, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Flying

, Sacrifice Glen Elendra Archmage: Counter target noncreature spell.

Persist (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.)

At the beginning of the end step, if you control no artifacts, sacrifice Glimmervoid.

: Add one mana of any color.

Flying

When Glint Hawk enters, sacrifice it unless you return an artifact you control to its owner's hand.

: Add . Put a stash counter on Glittering Stockpile.

, Sacrifice Glittering Stockpile: Add X mana of any one color, where X is the number of stash counters on Glittering Stockpile.

Each player chooses from the lands they control a land of each basic land type, then sacrifices the rest.

When Glorifier of Suffering enters, you may sacrifice another creature or artifact. When you do, put a +1/+1 counter on each of up to two target creatures.

When Gluttonous Guest enters, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Blood token, you gain 1 life.

Flash

Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)

Sacrifice an artifact: Gnathosaur gains trample until end of turn.

Gnottvold Slumbermound enters tapped.

: Add .

, , Sacrifice Gnottvold Slumbermound: Destroy target land. Create a 4/4 green Troll Warrior creature token with trample.

When GO TO JAIL enters, exile target creature an opponent controls until GO TO JAIL leaves the battlefield.

At the beginning of the upkeep of the exiled card's owner, that player rolls two six-sided dice. If they roll doubles, sacrifice GO TO JAIL.

Whenever you place a sticker, create a Treasure token. If it's an art sticker, instead create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

Whenever Goblin Assassin or another Goblin enters, each player flips a coin. Each player whose coin comes up tails sacrifices a creature.