The comic. Does not. Follow. The game mechanics. The game mechanics. Followed. The Comic.
And the stat post was adjusted to make things fair, in the Goblinverse it's 100% touch and loose a limb, there are no fort saves or whatever factored into it, if you touch the thing, you WILL be effected because that is how it works!
And you know just because he's begun loosing a leg doesn't mean he's lost the fight, i can easily see him adapting to hopping around on one leg or crawling after Grem, Hell he's told us spesificly that he does not have a sense of loss, if his leg is gone, so what!? he can still fight! So he keeps fighting! It's not like it can't be replaced by either Klik, The blue orb, or a log.
Also: Dat fourth pannel BF