User blog comment:Furbearingbrick/No More Spinoffs: Desperate Struggle/@comment-1778317-20130122041548/@comment-1290332-20130123203338

Yeah, a character being invincible is usually a sure sign of them being overpowered. To make the creature more balanced, you could have it suffer these injuries because it is in constant pain and it WANTS to die, but because it can't die, it's trapped in endless agony. The plot could have the pitiable beast trying to goad various people into trying to kill it.