Grima, Saruman's Footman [The Lord of the Rings: Tales of Middle-Earth Commander]

Grima, Saruman's Footman can't be blocked.

Gríma deals combat damage Whenever to a player, that player exiles cards from the top of their library until they exile an instant or sorcery card. You can cast this card without paying its mana cost. Then that player puts the exiled cards that weren't cast this way on the bottom of their library in a random order.