When a Spell/Trap Card, or monster effect, is activated while you control an Xyz Monster: Negate the activation, then you can detach 2 materials from a monster(s) you control, then destroy 1 card on the field. You can banish this card from your GY, then target 1 Xyz Monster you control; attach 1 LIGHT "Utopia" or "Utopic" Xyz Monster from your GY to it. You can only use each effect of "Unbreakable Xyz Barrier" once per turn.