Full-Armored Xyz - 25th Anniversary Tin: Dueling Mirrors

If an Xyz Monster(s) is on the field: Immediately after this effect resolves, Xyz Summon 1 Xyz Monster using monsters you control. You can banish this card from your GY, then target 1 Xyz Monster you control; equip 1 other Xyz Monster from your face-up field or GY to that monster as an Equip Spell with the following effects.
• The equipped monster gains ATK equal to this card's ATK.
• If the equipped monster would be destroyed by battle or card effect, destroy this card instead.