Cannot be Normal Summoned / Set . Must be Special Summoned (from your hand ) by sending 1 face-up " Jinzo " you control to the GY . Trap Cards , and their effects on the field , cannot be activated . Negate all Trap effects on the field. Once per turn : You can destroy as many face-up Traps on the field as possible, and if you do, inflict 300 damage to your opponent for each card destroyed.