Remnant of Ner'zhul
Orbs - Hit with Boss Ability SUFFERING - beam aimed at tank - to remove shield.
Tank swap after every Suffering
Kill orbs when shield is down, then pick up and throw off edge (extra action button)
MALEVOLENCE - stagger dispels. Knock-back to entire raid. Be near centre.
GRASP OF MALICE - black lines - avoid.
SHATTER (80,60, 30% health) - avoid swirlies (lots!!)
Will also be other random similar swirlies - just avoid.