Downerd Magician (RA01-EN035 Prismatic Ultimate Rare)

2 Level 4 Spellcaster monsters
During your Main Phase 2, you can also Xyz Summon this card by using a Rank 3 or lower Xyz Monster you control as material. (Transfer its materials to this card.) This card gains 200 ATK for each material attached to it. If this card attacks a Defense Position monster, inflict piercing battle damage. If this card battles, after damage calculation: Detach 1 material from this card.

Spellcaster/XYZ/Effect , 25th Anniversary Rarity Collection