Houdini, Magician of the Blood Moon

You can Special Summon this card (from your hand or Graveyard) by banishing 2 face-up "Blood Moon" Pendulum Monsters from your Extra Deck. Once per turn: You can banish 1 "Blood Moon" monster from your Graveyard or face-up in your Extra Deck, then target 1 monster your opponent controls; shuffle it into the Deck, then if it was an Xyz Monster, inflict damage to your opponent equal to the combined ATK of that monster's Xyz Materials when it was on the field (if any). When this card is destroyed by battle or if it leaves the field by an opponent's card effect: You can target 1 of your banished "Blood Moon" monsters, except "Houdini, Magician of the Blood Moon"; Special Summon it, but place it on the bottom of the Deck if it leaves the field.

???