Gilles, Prodigal Protégé

Flying, deathtouch, lifelink

Whenever you gain life, Gilles, Prodigal Protége gains indestructible until end of turn.

At the beginning of your end step, you may pay {1}{w/b} When you do, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.