Tenali, Keeper of Faith

Vigilance, Lifelink, First Strike.
When Tenali, Keeper of Faith enters the battlefield, put a +1/+1 counter on target creature.
Sacrifice Tenali, Keeper of Faith: Draw a
card, and target creature gets a -1-/-1
counter.
Pay {1}{w}{w}: Regenerate Tenali, Keeper of Faith.