Dinoster Power, le Puissant Dracossassin OP01-FR010

1 Pendulum Monster "Dracossassin" + 1 Pendulum Monster Must first be Special Summoned (from your Extra Deck) by Tributing the above cards. (Do not use "Polymerization".) Pendulum Monster Cards in your Monster Zones and Pendulum Zones cannot be destroyed by battle or by your opponent's card effects. Once per turn, you can Special Summon 1 "Dracossassin" Pendulum Monster from your hand or Graveyard, but it cannot be used as Fusion Material.