Battlin' Boxer Lead Yoke (German) - "Unermüdlicher Boxer Bleijoch" (AC14-DE014) - Advent Calendar 2014 (Adventskalender ZEXAL-Edition) Limited

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 detach from this card: This card gains 800 ATK.