I am not sure what causes this problem, but every now and then tantrum doesn't work. I get hit well over the required number and it never allows me to use the ability.

I may have experienced this, but what I experienced I assumed was intentional.

If I get hit the requisite number of times the skill lights up. If I then don't get hit for some period of time the skill becomes unavailable. If I get hit once it lights up again for a while. If again I go some period without getting hit it is again unavailable. It sort of sucks to not be able to have one charged, bandage someone and hit it. But it's never too hard to get myself hit once so I can use it.

also if you scroll over the passive that it gives, it will be a blank box. thats when you know its glitched

Thanks for reporting.

BB-48