[ Pendulum Effect ] Once per turn, at the end of the Damage Step, if your Dragon Pendulum Monster attacked an opponent's monster: You can activate this effect; it can attack again in a row.

You cannot declare attacks the turn you activate this effect, except with that monster.

[ Monster Effect ] Cannot be Normal Summoned/Set.

Must be Special Summoned (from your hand or face-up Extra Deck) by Tributing all monsters you control (min.