You cannot Pendulum Summon monsters, except "Nekroz" and "Zefra" monsters. This effect cannot be negated.
Cannot be placed in the Pendulum Zone, except by its own effect. You can Ritual Summon this card with any "Nekroz" Ritual Spell Card. Must be Ritual Summoned without using any Level 10 monsters. When this card is Ritual Summoned: You can destroy all Special Summoned monsters your opponent controls. You cannot conduct your Battle Phase the turn you activate this effect. Cards cannot be Tributed, except for a Tribute Summon or by the effect of a Spell/Trap Card. Once per turn: You can target 1 face-up "Zefra" monster in your Extra Deck; equip that target to this card. During either player's turn, when a card or effect is activated: You can destroy 1 card equipped to this card; negate the activation, and if you do, destroy that card. If this card in the Monster Zone is destroyed by battle or card effect: You can destroy 1 card in your Pendulum Zone if you have 2 cards in your Pendulum Zones, also, after that, place this card in your Pendulum Zone.