Originally posted by jjrobinson2:

Health points aren't worth much when you're out of stamina. I use 1 health to 2 stamina in a build after early game.
I generally lean on Bonemass with the tower shield from above and pound him with the mace until I fall off, then run around the fort and repeat until he drops. Still have to avoid the poison gas, even with the root mask,. If I stay with him on the ground, HP gets low before I get very much done.

This time, I ended up standing on his shoulder or head, and couldn't hit him.

Of course health points are worth something when you're out of stamina. Running out of stamina just slows down your attack, it doesn't stop it, and it actually doesn't slow it down that much. Your attack speed reduces, but you can attack for longer, so it's a tradeoff.

I always use poison resist mead in the bonemass attacks, even with the mask, which seem to at least mostly negate the poison effect. Of course it depends on what armor you wear as well.