Caleb Widogast

When Caleb Widogast enters the battlefield, it
deals X damage to target creature or planeswalker, where X is the number of Sorcery spells in your graveyard.
Whenever you cast instant or sorcery spell, you
may untap target creature you control.
Maybe you and I are both damned. But we can choose
to do something, and leave it better than it was before.