Without Soulbinder Naazindhri, the immense army of the Shadowguard would not exist. Coaxing the souls of ethereals out of the Twisting Nether, the Soulbinder binds them in living silk and in purpose to serve the Shadowguard. While using the Shadowguard to defend herself, she also considers them her children. Slaying them will only focus her ire. 

This is a single phase, mainly single target fight.

More information: https://www.wowhead.com/guide/the-war-within/raids/manaforge-omega/soulbinder-boss-strategy-abilities

Tactics

Phase 1

• Bloodlust on pull.

• Tank boss between two glowing "pads".

  • Pads spawn shielded adds (more on HEROIC) - the shield is broken by beams/orb that target raider(s).  Kill adds before their cast finishes.

    • The targeted raiders each stand BEHIND one of the pads for the orb to break the shield (local AoE damage)

• Once one set of pads have been dealt with, move boss to next set.  Max of 3 sets before the rest of the adds arrive.

• Drag boss to set of 4 before they release.

• Lots of interrupts, stuns etc and nuke adds down.  Once they're down, rinse and repeat.

• Random raiders will get spikes around them - move out before orbs erupt from the spikes.  Everyone else avoid.

• Arcane Expulsion - boss knockback - try not to get knocked into orbs or off the edge (can use to get knocked to next tank location).

• TANK: Mystic lash taunt swap (after each, or when debuff drops off)

Adds

• Assassin (ranged spread), Mage (interrupt), Phaseblade (heal AoE damage).

• All to be picked up by tank.