1 DARK Tuner + 1 or more non-Tuner monsters
If your opponent Special Summons a Synchro Monster or Summons a Tuner, while you control a Level 13 "Final Rift Beast" Impure Monster, you can Synchro Summon this card (from your Extra Deck or Graveyard). After this card is Synchro Summoned using a "Rift Beast" monster as Material, all cards currently on the field, in each player's Graveyards, and in each player's hands, except "Final" cards, have their effects negated and are returned to their location and position as they were during your opponent's previous Draw Phase. You can only use each of the following effects of "Final Rift Beast Guardian - Zenobia" once per turn.
● During either player's turn, when a monster effect is activated: You can negate the effect and banish it, then if that monster was first Special Summoned from the Extra Deck or Impure Deck, inflict damage to your opponent equal to the highest original ATK among the Materials used to Summon it (your choice, if tied).
● If this card is destroyed: You can Special Summon 2 Level 4 "Final Rift Beast" monsters from your hand, Deck, Graveyard, or Extra Deck