White Espinas

White Espinas enters the battlefield tapped and with a time
counter on it. As long as it has a time counter on it, it
doesn't untap during your untap phase and it can't
attack or bloack. At the beginning of your upkeep, remove
a time counter from White Espinas.

Ward—Pay {2} and life equal to the total mana spent to
cast the targeting spell.

Purge (Whenever this creature deals damage to a
creature, exile that creature.)