Performage Trapeze Witch

2 "Performage" monsters "Performage" monsters you control cannot be destroyed by your card effects, also your opponent cannot target them with card effects. While you control a "Performage" monster, except "Performage Trapeze Witch", your opponent's monsters cannot target this card for attacks. When an attack is declared involving your "Performage" monster and an opponent's monster: You can make that opponent's monster lose 600 ATK.