Fire Shaman is bugged and griefer-ridden
So that’s what’s causing the reset!!!
The bug is actually not as simple as that.
I mentioned the bug to a friend last night while we were doing this. He asked me if I had tested it. I said no and he said you should never rely on rumors so he proceeded to attack the shaman constantly during the B phase. Wasn’t able to trigger the reset at all.
I have seen/encountered the situation you described several times.
I’ve been looking into this boss’s mechanics and I’ve found that there are 2 versions of what triggers the reset:
- hitting the shaman in the fire phase
- crossing the fire lines in the fire phase
I couldn’t reproduce the behaviour in case 1, however I noticed once that if my Phantasmal Berserker whirls over the fire line, the HP resets. Since that time, I’m not using illusions during the fire phase anymore.
I’ve been looking into this boss’s mechanics and I’ve found that there are 2 versions of what triggers the reset:
- hitting the shaman in the fire phase
- crossing the fire lines in the fire phase
I couldn’t reproduce the behaviour in case 1, however I noticed once that if my Phantasmal Berserker whirls over the fire line, the HP resets. Since that time, I’m not using illusions during the fire phase anymore.
Tried that too. Might but something different for each of the 3 parts of the fight.
I think I found an answer: https://forum-en.gw2archive.eu/forum/game/gw2/Fire-Shaman-HP-Reset-Mystery-Solved/