Berserk support gem...

What support gems would even work with it? It's a spell+duration gem. I don't see how any support gem would actually work besides maybe cast on crit setup. It's based on how much rage you have..

What supports would you put into it?

i probably wouldn't put any supports in it. you could throw it in a voideye and get a couple more % of atk spd etc.

ya duration tag is interesting. inc duration shouldn't do anything.
its a strong as hell skill though, thats for sure. the boost is huge. doesn't have much use early game as rage generation just doesn't come fast enough but i can imagine it being a very powerful thing vs bosses.

curse
plant flag
zerk
wreck havoc

A high level cwdt would possibly go nicely on it, sort of like blood rage, if you didn't want to think about it, but otherwise self cast no link

Yeah, I'm a chieftain tect slam build. Im using rage on tect strike and it feels solid.

Also CWDT wouldn't work that well I think, I Feel like it's best to pop zerk on bosses.

i dunno bout the rage support gem....

hell even as zerker, rage generation feels pretty slow and bad. if things are spread out a bit, bad layout or whatever, you'll start losing rage and there will be hardly enough monsters to gain it back to what it was before - depending how hard you hit.

essentially if you 1 shot mobs, rage feels like trash.
if you can attack 3 times a second and mobs stay alive for 2 seconds, rage is good!