Royal Rebel's Doom Metal

[ Fiend / Effect ] [REQUIREMENT]During the turn you Normal Summoned this card by Tributing 2 Level 7 or higher Fiend Type monsters. [EFFECT] Destroy all face-up monsters on your opponent's field, then inflict damage to your opponent equal to [the total original Levels of the monsters destroyed by this effect] x 100. ATK/ 2500 DEF/ 2000