The boss 2 challenge mote is so RNG. Most of the people who have the achievement simply cheesed it due to the extreme RNG. After doing the fight for 6 hours and getting it to sub 15% numerous times, we were extremely aggravated. ANet should make it actually more skillful or even reduce the cd on Protect. At the moment is so frustrating to get as we just have to hope people don’t get rekt by RNG.