I just opened a ticket about this, but I’m wondering if anyone else has had the same issue with this ability. It basically lowers your heavy attack damage by 20% in return for GRIT. The problem I have is that I respecced out of it, and still do 20% less heavy attack damage. My character is also one of those which has a host of other bugs, including a Tier 4 camp at level 60, and issues with quests/expeditions. I’m not sure if those problems could possibly be related, but I’m wondering if the heavy attack thing is a known issue.
It’s actually working as intended now. I’m not sure why the ability reduced my outgoing damage before, but it makes a lot more sense that it’s supposed to reduce incoming damage. Not sure if the patch fixed it or not.