Reverse Buster (Starfoil)

LIGHTEffect Monster

This card can only attack face-down Defense Position monsters. If this card attacks, your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step. At the start of the Damage Step, if this card attacked a face-down Defense Position monster: You can destroy that monster immediately with this card's effect without flipping it face-up or applying damage calculation.