Even just baseline immortality in the Greek mythos means nothing will actually kill you no matter how much it damages you. We've seen this demonstrated by people like Chiron and Alcyoneus. Heracles was pretty clearly Alcyoneus' superior by far, but he had to actually drag Alcyoneus somewhere that would void his immortality before he could kill the guy. The gods are a step above this, as they aren't altogether physical beings, so unless one happens to piss off Zeus, trapping them in a state of perpetual death or even wounding them isn't easy either. As I recall, Ares also demonstrated that they're fundamentally invincible to most things until Athena amped the shit out of a mortal to make hurting him possible. And all that really did was make him piss and moan a bit. He didn't seem to actually be hurt.BitVyper: We can't really judge just by concept. Full god vs. demi-god has nothing to do with feats.