CXyz Comics Hero Legend Arthur (NUMH-EN042) [Number Hunters]

3 Level 5 monsters // Once per turn, this card cannot be destroyed by battle. If this card has "Comics Hero King Arthur" as an Xyz Material, it gains this effect. // * When this card destroys a monster by battle and sends it to the Graveyard: You can detach 1 Xyz Material from this card; banish the destroyed monster, and if you do, inflict damage to your opponent equal to its original ATK.