Originally posted by ElfBossHogg:

That's what I'm trying now... I've actually been able to kite him in to a swamp where he's entangled with some indestructible trees. Next step is I'm going to dig a big pit and see if I can't harpoon him in to it.

The swamp is actually very close to a portal so short of him getting loose and agroing on the rest spot I've got a nice place to work from.

In this playthrough I've been trying to play it through without using any environmental exploits but the current environment is calling for it... Fighting fire with fire. If he wants to exploit tar pits then he's going in the hole and getting Smith slapped. :)

I think you should now spawn Bonemass and let the 2 fight it out.