Battlin' Boxer Lead Yoke (LD10-EN057) - Legendary Duelists: Soulburning Volcano 1st Edition

2 Level 4 " Battlin' Boxer " monsters
If a "Battlin' Boxer" monster(s) you control would be destroyed by battle or by a card effect , you can detach 1 Xyz Material from this card instead of destroying 1 of those monsters. When an Xyz Material(s) is detached from this card: This card gains 800 ATK .