Number 33: OOPArts Super Weapon - Machu Mach

2 Level 5 monsters
Once per turn: You can detach 1 Xyz Material from this card to target 1 monster on the field; inflict damage to your opponent equal to the difference between the target's current ATK and original ATK, and this card gains ATK equal to that same amount.

burn and ATK bonus

do you think this card could be useful having volcasaur, tiras and zenmaioh?

to use this card you need to use it on a monster with its att changed by an effect a great one could be darkworld shackles or gale

I personally think its trash, since a lot of cards change original attack values now.
Sorry, but I'm sticking with #12/Tiras/Volcanosaurus.