Equipped creature has haste. Whenever an ability of equipped creature is activated, if it isn't a mana ability, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy. Equip {2}

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy. Equip {3}

Sacrifice a creature: Add {C}{C}.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.) When this creature dies, you may discover X, where X is its toughness.

Defender When this creature dies, create a 2/2 red Dragon creature token with flying and "{R}: This token gets +1/+0 until end of turn."

Lifelink Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn. When Enduring Innocence dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

When this creature enters, you may sacrifice a creature or Vehicle. When you do, destroy target artifact an opponent controls.

Gimli has indestructible as long as two or more creatures died under your control this turn. Whenever another creature you control dies, put a +1/+1 counter on Gimli. When this ability resolves for the third time this turn, Gimli fights up to one target creature you don't control.

Whenever you attack, you may sacrifice another creature or an artifact. If you do, create a 4/1 black Skeleton creature token with menace that's tapped and attacking. (It can't be blocked except by two or more creatures.) Choose a Background (You can have a Background as a second commander.)

When this creature enters, untap target creature.

Changeling (This card is every creature type.) When this creature enters, create a 2/2 colorless Shapeshifter creature token with changeling.

Whenever another creature you control with power 2 or less enters, you may pay {1}. If you do, draw a card.

Changeling (This card is every creature type.) {X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Whenever this creature mutates, put a +1/+1 counter on it.

Flying Landfall — Whenever a land you control enters, create a 0/2 red Dragon Egg creature token with defender and "When this token dies, create a 2/2 red Dragon creature token with flying and '{R}: This token gets +1/+0 until end of turn.'"

Other Dinosaurs you control have haste. When this creature enters, create two 0/1 green Dinosaur Egg creature tokens. At the beginning of combat on your turn, if you control one or more Eggs, sacrifice an Egg, then create a 3/3 green Dinosaur creature token.

Defender (This creature can't attack.) When this creature dies, create a 3/3 white Bird creature token with flying.

When this creature dies, create a 4/4 red Bird creature token with flying at the beginning of the next end step.

When this creature enters, you may sacrifice a creature. When you do, destroy target artifact an opponent controls.

Imprint — When this creature enters, you may exile a card from your hand face down. When this creature dies, turn the exiled card face up. If it's a creature card, put it onto the battlefield under your control.

Changeling (This card is every creature type.) Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, untap all creatures you control.

Choose a number between 0 and 13. Each player sacrifices that many creatures of their choice.