God-Monarch Thestalos

Haste, First Strike
As an additional cost to cast this spell, you may sacrifice a creature. If you do, you become the
monarch.
When God-Monarch Thestalos enters the battlefield, if you're the monarch, target
opponent reveals his or her hand. You choose
up to 2 nonland cards from it. That player
discards those cards and loses life equal to their combined converted mana cost.