Kitsunes Technique 42 (Teenage Mutant Ninja Turtles)

Sneak {1}{U} (You may cast this spell for {1}{U} if you also return an unblocked attacker you control to hand during the declare blockers step.) Target opponent mills half their library, rounded up.

NM - $2.60
LP - $2.10
MP - $1.60
HP - $1.50
DMG - $1.50