I understand the description of the OSA passive; however I've only ever seen it active once in my playthrough. It doesn't seem to be connected to how many engagements my barbarian has or how many enemies are "near" him. I can't seem to get the ability to activate in any situation. At this point I'm wondering if something is bugged. Does the barbarian have to be a certain distance from allies?

It should get triggered automatically once two or more melee guys attack you ("threaten" you). It has nothing to do with engagement (was changed in a patch because of Eye of the Storm removing engagement of enemies). Also allies shouldn't matter.

 

Maybe you need to equip a melee weapon to see the little icon - because it only applies to melee damage. You should be able to find it on you char sheet under "Current Effects" (or what is it called?) as well.

Edited August 6, 20187 yr by Boeroer

You're right. The problem was on my end, I was using the latest IEMOD and turning it off fixed it. Thanks for the quick response.

Iemod breaks that perk? How exactly?

Maybe because it removes engagement completely.