Prisoner in Kind

Defender
-When Prisoner in Kind enters the battlefield,
you may exile another target creature.
-When Prisoner in Kindleaves the battlefield,
return the exiled card to the battlefield under
its owner's control.
Whenever you exile a card an opponent controls,
or a card leaves exile, you gain 1 life.
"Through suffering chains willingly, the innocent
maid bound much greater perpetrators."