Don't know if this was mentioned at all but Turn 7 with echo sounds like a nightmare. My static has had it on farm for probably around 5-6 months now and it's at the point where we all have to stop doing pretty much anything and just stand there for a good 5-10 seconds several times throughout the fight.

Don't even want to know how bad it is with Echo. Made sure to get all the pieces I wanted from it because after they open it up I'm never doing that with randoms. Even if they nerf it into the ground the only way to avoid making people whine and complain about it is to make all the one shot mechanics not be one shot mechanics.

T6 and T9 are the only turns that seem to be unaffected by having a ton of DPS. Unless they change some things, even with echo and new gear people will still have trouble with 7 and 8.