Target 1 'Junk Warrior' you control; this turn, if it battles an opponent's monster, apply these effects.
● Your opponent cannot activate cards or effects until the end of the Damage Step.
● If it attacks a Defense Position monster, inflict piercing battle damage to your opponent.
● Double any battle damage your opponent takes from battles involving it.
● It cannot be destroyed by battle.
● Destroy that opponent's monster at the end of the Damage Step.