Lore3 Level 4 "Battlin' Boxer" monsters
If this card is Xyz Summoned, except by the effect of a "Rank-Up-Magic" card: place this monster in Defense Position, and it cannot change its battle position, except with a card effect. When this Attack Position card battles a monster: you can detach 1 Xyz Material from this card to target 1 other monster on the field; this card gains ATK equal to the ATK of the target - 600. If this card has "Battlin' Boxer Stallion Rocket" as an Xyz Material, it gains this effect.
● If your Life Points become 0, while you control this face-up card, you cannot lose the Duel.