変わり身の勇士/Changeling Hero

Creature - Shapeshifter
Changeling (This card is every creature type at all times.) <CR>
Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.) <CR>
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Creature - Shapeshifter
Changeling (This card is every creature type.) <CR>
Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.) <CR>
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Creature - Shapeshifter
Changeling (This card is every creature type at all times.) <CR>
Champion a creature (When this comes into play, sacrifice it unless you remove another creature you control from the game. When this leaves play, that card returns to play.) <CR>
Lifelink (Whenever this creature deals damage, you gain that much life.)

Creature - Shapeshifter
Changeling (This card is every creature type at all times.) <CR>
Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.) <CR>
Lifelink (Damage dealt by this creature also causes you to gain that much life.)