Whenever Shape Stealer blocks or becomes blocked by a creature, change Shape Stealer's base power and toughness to that creature's power and toughness until end of turn.

As Shapeshifter enters the battlefield, choose a number between 0 and 7.

At the beginning of your upkeep, you may choose a number between 0 and 7.

Shapeshifter's power is equal to the last chosen number and its toughness is equal to 7 minus that number.

, Exile Shifty Doppelganger: You may put a creature card from your hand onto the battlefield. If you do, that creature gains haste until end of turn. At the beginning of the next end step, sacrifice that creature. If you do, return Shifty Doppelganger to the battlefield.

At the beginning of your upkeep, you may have Shyft become the color or colors of your choice. <I>(This effect lasts indefinitely.)</I>

Flash

You may have Stunt Double enter the battlefield as a copy of any creature on the battlefield.

, Sacrifice another creature: The Ever-Changing 'Dane becomes a copy of the sacrificed creature, except it has this ability.

: Thornling gains haste until end of turn.

: Thornling gains trample until end of turn.

: Thornling gains indestructible until end of turn.

: Thornling gets +1/-1 until end of turn.

: Thornling gets -1/+1 until end of turn.

Changeling (This card is every creature type.)

: Switch Turtleshell Changeling's power and toughness until end of turn.

Changeling (This card is every creature type.)

Whenever another creature enters the battlefield, Unstable Shapeshifter becomes a copy of that creature, except it has this ability.

This spell costs less to cast for each creature type among creatures you control. This effect can't reduce the amount of mana this spell costs by more than .

Changeling (This card is every creature type.)

Double strike

You may have Vesuvan Doppelganger enter the battlefield as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."

As Vesuvan Shapeshifter enters the battlefield or is turned face up, you may choose another creature on the battlefield. If you do, until Vesuvan Shapeshifter is turned face down, it becomes a copy of that creature, except it has "At the beginning of your upkeep, you may turn this creature face down."

Morph

You may have Vizier of Many Faces enter the battlefield as a copy of any creature on the battlefield, except if Vizier of Many Faces was embalmed, the token has no mana cost, it's white, and it's a Zombie in addition to its other types.

Embalm

At the beginning of combat on your turn, put a -1/-1 counter on up to one target creature.

: Until your next turn, Volrath, the Shapestealer becomes a copy of target creature with a counter on it, except it's 7/5 and it has this ability.

You may have Wall of Stolen Identity enter the battlefield as a copy of any creature on the battlefield, except it's a Wall in addition to its other types and has defender. When you do, tap the copied creature and it doesn't untap during its controller's untap step for as long as you control Wall of Stolen Identity.

Changeling (This card is every creature type.)

Reach

When Webweaver Changeling enters the battlefield, if there are three or more creature cards in your graveyard, you gain 5 life.

Changeling (This card is every creature type.)

Body-print — : Tap another target creature and put a stun counter on it. Zygon Infiltrator becomes a copy of that creature for as long as that creature remains tapped. Activate only as a sorcery. (If a permanent with a stun counter would become untapped, remove one from it instead.)