Charge a group of demons into a nearby wall, and then pulverize them! His range is so wide, he can take out a whole gang of little things instantly. For the bigger ones, he's solid enough to wear them out.
Also, to keep it more authentic, all of his armor is hidden, so he's running around in just a grass skirt.
It's probably not optimal. (I'm lvl 50) but I've been using the quest reward amulet that creates a bubble of immunity. I hate to give it up because it works so well. If I do actually start taking damage, it gives me time to regroup and heal up (while continuing to smash everything in arms reach) and I usually don't take damage again until after the cooldown on the ring is done.
It's insane how tanky he can get. I gave mostly a nature magic werebear hybrid and most of the time I just can't die. It did teach me to play pretty reckless so now I sometimes take on more than I can chew but otherwise i have no issues with stuff.
The capstone to WT4 is something I can't manage quite yet though. Playing smartngot me to the boss but I didn't have enough patience and time to kill him. At around 60 I chew through lvl 70 nightmare dungeons but the capstone is just not quite in my reach.
It does, now that you mention it. I still have pretty random build, focused mainly to have the right aspects for the playstyle I find fun. Figured no need to minmax at WT3 when I will be replacing that gear soon (if I ever make it to WT4). But thorns sound like a fun idea, will have to keep it in mind.
I've been putting emeralds in my Bear Druid's armor. Not sure if it's been making a difference, but it seemed more useful than resistances since I'm rarely talking significant damage as it is.
Loving my bear druey. There's a couple aspects that turn pulverize and trample into earth skills, and allow you to pop landslides and earth spikes every time you trample or pulverize respectively.