Angwir, the Ancient
Legendary Creature — Turtle God
Mortal Sacrifice (Sacrifice any number of non-God, nonartifact creatures as you cast this spell to reduce its mana cost by their combined mana value.)
Angwir, the Ancient enters the battlefield with seven patience counters on it.
At the beginning of each end step, if you cast exactly one spell this turn, you may remove a patience counter from Angwir. If you do, draw a card.