Liliana the Repentant

Legendary Creature — Human Warlock — {1}{B}

Whenever another creature or planeswalker you control enters, mill two cards. Exhaust — {5}{B}: Return target creature or planeswalker card from your graveyard to the battlefield. Put a +1/+1 counter on Liliana. Activate only as a sorcery. (Activate each exhaust ability only once.)