You cannot Pendulum Summon monsters, except "Nekroz" and "Zefra" monsters. This effect cannot be negated.
While this card is in your hand or Graveyard, if a face-up "Nekroz" or "Zefra" card(s), except "Zefraxa, Flame Beast of the Nekroz", is destroyed by battle or card effect while in your Monster Zone or Pendulum Zone: You can Special Summon this card. You can only use this effect of "Zefraxa, Flame Beast of the Nekroz" once per turn.
Chosen of Zefra
This card gains these effects depending on the number of face-up "Zefra" monsters with different names in your Extra Deck. ●3 or more: Monsters you control gain 100 ATK for each face-up card in any Extra Deck. ●5 or more: Monsters you control cannot be destroyed by an opponent's card effects. ●8 or more: Monsters you control cannot be targeted by an opponent's card effects. ●10: You can send this card to the Graveyard; shuffle all cards from your opponent's hand, field, and Graveyard into the Deck.
Destroy as many cards in each player's Pendulum Zones as possible, then apply these effects, in sequence, depending on the number of cards destroyed by this effect. ●1 or more: Inflict 500 damage to your opponent. ●2 or more: You can add 1 Pendulum Monster from your Main Deck to your hand. ●3 or more: You can banish 1 card on the field. ●4: You can add 1 "Wavering Eyes" from your Deck to your hand.
Return of the Red-Eyes
If you control a "Red-Eyes" monster, except "Red-Eyes B. Chick": You can target 1 Normal Monster in your Graveyard; Special Summon it. If this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can target 1 "Red-Eyes" monster in your Graveyard, except "Red-Eyes B. Chick"; Special Summon it. You can only use each effect of "Return of the Red-Eyes" once per turn.