I fought again vs insane, he had 100k hp and still enough dps to kill me in my tankiest spec
i tried with normal build, and i got him once in wotb to about 15% hp but it was clearly no chance for me, it probably means I'm outgeared, like almost all players here, except vimer who is probably in the 50-100B gear range.
seems that the most important skills for barb vs good wd are:
1. how to chase and stun the wd when he runs around a rock while u have wotb
2. how to run for 1.45minutes around the map without getting hit too much by the 1000-yards-over-the-wall skills.
I will share how i do it, maybe better barbs or wds can tell me how to do it better.
basically i use superstition for full fury when hit by haunt. I try to pop wotb right at the beginning of a big haunt, while still having warcry available for more fury... ideally i would want to pop it right after he uses a spirit walk, but it's hard.
also i use charge stun and i have to have it available when i pop wotb.
after i pop wotb, haunt still almost fills my fury, and i also have wc for more fury, first i charge and try to stun because charge has 10 sec cd, so i can get 2 charges in the 15 seconds of insanity. if i can hit both stuns while he doesnt yet have spirit walk maybe i can do something, but the chances are very slim, especially when they run around tight corners, very hard to catch with charge.
bash clobber may be a good idea for when in wotb but you have to do some damage even before wotb, and charge has a bit of cc protection vs hex.
zombie dogs are a big thing, even if they don't look like it, because if barbs wanna do some damage outside of wotb they have to dance around the hex shaman, zombie dogs make this very hard and u risk getting 2-3 stuns in a row if the dogs surround u.
popping wotb while in relentless is another way to do it imo, because of lower cost u save more fury so the hotas have more cc, but it's very risky vs high dps and hard to do right.
probably the most chances are to go for higher dps, pop wotb at the first haunt and pray u get 2 stuns, because after wotb u are dead