Noise Marine - Warhammer 40,000 Commander

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Sonic Blaster — When Noise Marine enters, it deals damage equal to the number of spells you've cast this turn to any target.