Mindless Rage

[Irenicus]

Hey. Without spoiling anything, can someone who has extensive knowledge tell me if Mindless Rage is actually something worth putting 6 levels into Berserker for? It sounds good but I want to know if it is practical. How often is being immune to charm and fear relevant?

I am having a tough time deciding between Wildheart and Zerker. I know Wildheart is great nobody needs to convince me. I am simply trying to evaluate Zerker. It will be a multiplayer character therefore I am going to have 4 levels or so in Rogue for the extra bonus action and the thief skills. Zerker has the nice bonus action stuff but the rage fatigue that stacks is off putting. Insight appreciated.