Noise Marine (Universes Beyond: Warhammer 40,000)

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 this creature enters, it deals damage equal to the number of spells you've cast this turn to any target.

NM - $2.50
LP - $2.00
MP - $1.50
HP - $1.00
DMG - $0.50