Hey guys,
before I put in a bug report I wanted to ask whether bosses or heroes can turn off your passive skills like flame touched and things? Several times during the fight with Ult Log my passives were switched off. While I died a few times I did turn them back on each time and make sure they were on before the fight commenced. It has happened a few times with the cadence gunslinger I am currently playing.
Note: flame touched is not a passive skill. It’s an aura, and you have to activate it - so it’s an active skill that’s always on - until its not. 
Some auras cost energy to maintain, but your regen rate is usually fast enough to compensate.
Some mobs can use energy leech to drain your energy. Once you run out of energy or get too low, your auras that cost energy will turn off.
All of the above, and then there is Loxmere as well…
Ah, legend, thanks for the answer. That’d be what it is because this build is so heavy on the energy usage. Sorry, yes, I meant aura not passive skill.