Gagaga Magician - Gagaga Magic

If this card is in your hand: You can Special Summon both it and 1 other "Zubaba", "Gagaga", "Gogogo", or "Dododo" monster from your hand or GY, except "Gagaga Magician - Gagaga Magic", and if you do, immediately after this effect resolves, Xyz Summon 1 "Zubaba", "Gagaga", "Gogogo", "Dododo", "Djinn", "Heroic Champion", "Number", "ZW -", or "ZS -" Xyz Monster using only those 2 monsters. When you do, treat the Level of 1 of the monsters the same as the other monster's. You can only use this effect of "Gagaga Magician - Gagaga Magic" once per turn.