New to this update, the following Epic Destiny abilities cannot be used while raged:
And I believe most ironically:
As well as other 'spell-like' abilities.
Rejuvenation Cocoon and Healing Spring at the least make sense. I mean, how is a raging barbarian supposed to concentrate enough to heal him/her self with a spell. However, Primal Scream... really? Hah. So a raging barbarian is no longer able to scream at the air gaining a bonus to strength and constitution. That I find most hilarious.
Good thing I don't have any barbarian toons!