I managed to get Blademaster down, but it was rough. I start by pulling him to the door, ignore the adds and once he drops down to do Blade of Light and picks a side, I drop down with my whole team. Then I scoot into the little curve where the stairs crisscross. You want to get in tight, but not close enough to touch the wall and he should breeze by you without hitting you. That takes some practice, but works nicely, just have to resist the urge to jump the gun on timing or panic.


Once he passes, I try and scoot back up the stairs, but that's not always possible. Then it's just rinse and repeat on the tucking into the stairs and DPSing until he starts his frenzy thing. That's when I pop cooldowns and pray. I ignore the adds all through the fight and let AOE/Blades take them out, otherwise he's up too long and he's spam calling adds and building frenzy stacks, with is a guaranteed wipe.