Thanks for the replies.
@ Phillip_Lynx, forcefield prevents me from hitting them as much as them biting me though, or should I place the forcefield as something to walk around?
@Dr.Disaster, I think one of my biggest problems is that I haven't figured out their dance moves yet
@Spathi, waiting to later is probably the sane choice. I initially thought the Bog was a high-level area and cleared Crystal Mines before it. I don't think the Bog would have leveled me enough. Perhaps I should have done the pyramid before as well. By the time the Trickster showed up I had unlocked the Hub teleport, and used a similar tactic as you describe. And boy was it needed, Trickster, ogres wargs and twin.