Vidolium the Unstable Power Patron of Unity

Cannot be Normal Summoned/Set. Must be Special Summoned (from your face-up Extra Deck or GY) by returning 1 Fusion, 1 Synchro, and 1 Xyz Monster from your face-up field and/or GY to the Extra Deck. If this card is added to your Extra Deck face-up: You can add 1 "Power Patron" card from your Deck to your hand. You can only use this effect of "Vidolium the Unstable Power Patron of Unity" once per turn. If this card is Special Summoned: Banish all cards from the GYs face-down. Unaffected by non-"Power Patron" monsters' effects.