Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by sending 3 face-up Traps you control to the GY. This card gains 1000 ATK for each Continuous Trap in your GY. Once per turn: You can target 1 Set Spell/Trap your opponent controls; destroy that target. Neither player can activate Spell/Trap Cards in response to this effect's activation.