Old Entity Cthugua
1 Tuner + 1+ non-Tuner monsters
If this card is Synchro Summoned: You can return all Rank 4 Xyz Monsters on the field to the Extra Deck. If you Fusion Summon using this card as Fusion Material: Draw 1 card. An Xyz Monster that was Summoned using this card on the field as Xyz Material gains this effect.
● If it is Xyz Summoned: Draw 1 card.