Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 1 LIGHT Warrior and 1 DARK Fiend monster from your GY. This card's Special Summon cannot be negated. Neither player can activate cards or effects when this card is Special Summoned. If you control this card that was Special Summoned this way: You can pay 1000 LP; banish as many cards from your opponent's field and GY as possible, then inflict 500 damage to your opponent for each card banished. You can only use this effect of "Chaos End Ruler - Master of the Beginning and End" once per turn.