Rank-Up-Magic Magical Force

You can only activate a card with this card’s name once per turn. (1) Target 1 Rank 4 Spellcaster Xyz Monster in your GY; Special Summon it (but its effects are negated), and if you do, Special Summon 1 Rank 5 Spellcaster Xyz Monster from your Extra Deck, by using the first monster as material, and if you do that, attach this card to it as additional material. (The Second Special Summon is treated as an Xyz Summon.)