Tank: Help pull adds toward you, especially ranged ones, while keeping the boss facing away from the group.
Dps: Kill her Lamia and Maormer adds before focusing the boss; they attack relentlessly and are worse to ignore than the boss herself.
Tank: Block her heavy attack, or take a knockdown.
Dps: Block it as well if it lands on you rather than the tank.
Tank: Keep her facing away from the group and hold her still. Her frontal cone, Resonate or Scream, disorients (Break Free if hit) and can be blocked, but it is safest to avoid it entirely, especially at low health.
All: A large effect, Sudden Storm, covers the area as the fight starts. It is easy to stand outside it, and a few seconds caught inside is not fatal if you are slow to react.
Tank: Block Crushing Blow, the heavy attack, or it knocks you back.
Healer: Chain Lightning targets you and nearby allies and raises his defences, but does only minor damage. There is no need to avoid it; heal through it.
Tank: Taunt and hold the Lightning Avatar reflection in place. Do not let it move around; it dies quickly to area damage once controlled.
All: Avoid Enervating Bolt if you see it coming. If it hits you, Break Free from the stun quickly and watch your health, as it can land on anyone in the group.
All: Step aside and let the large Lightning Field pass, then return to position. Do not run from it across the room.
Tank: Stack the room's adds onto the boss and hold everything still, facing away from the group. The archer add can be pulled in to die alongside the rest.
Tank: Block Quick Strike, the heavy attack. Unblocked, it knocks you down rather than only stunning you.
All: Avoid Quick Shot's spin; block it if you cannot get away in time.
All: Avoid her lightning effect. Light damage, but still worth stepping out of.
All: Step out of the small grabbing Fist effect before it closes; it stuns and crushes anyone caught inside.
All: Avoid the small lightning pools Burst scatters around. High damage if you are caught in one.
Tank: Hold the fast-moving minion copies quickly without pulling the boss out of position. They die quickly to area damage once you have them.
Dps: If one targets you, move toward the tank so it can be taunted off quickly; they do not hit hard in the meantime.
All: Move out of Stomp's rapidly spreading effect quickly, then back in once it has gone. Being caught means heavy damage plus a stun and launch.
All: Below 25% health, keep up damage and hold position through his enrage burst. Running does not save you, and breaking damage or healing to move in a panic is what causes wipes here.
Tank: You cannot clear the adds before the boss here; they arrive together. Stack everything onto the boss so the group can bring it all down at once.
Dps: Interrupt the ranged caster and archer adds.
Dps: If someone is caught in a purple storm orb (Ethereal Grip or Levitate), interrupt the boss to free them. It deals no direct damage but leaves them unable to act. Break Free yourself if you are the one caught.
Tank: Block Uppercut, the heavy attack. High damage, and ideally always on the tank, but watch for it early in the fight in case it strays.
Hard Mode: Interact with the Scroll of Glorious Battle, found within the dungeon, before engaging Stormreeve Neidir (Veteran only; achievement: Burial At Sea). Hard Mode adds no new mechanics, only increased health and damage.
All: Stand in a rough circle around her, not stacked, so each player can tell who she is targeting when she attacks.
All: Avoid Sparking Strike, especially on Veteran, where it is very nearly a guaranteed kill. Ranged players should hold at the exact outer edge of her cast radius: close enough to step out quickly, far enough not to trigger Charge.
All: Stay within Sparking Strike's radius at all times, except while dodging it. Standing too far away triggers Charge, which is almost certainly fatal. The tank can deliberately bait Charge to reposition her.
All: Track and avoid the moving wind clouds at all times. Being staggered by one while dodging Sparking Strike, moving to distance, or taking another hit is what kills people here, not the wind damage itself.
Tank: Her regular melee attack, Lightning Strike, lands on whoever has aggro. Moderate damage, with nothing specific to react to.
All: Block Electro Shock the instant she raises her hand and looks at you. Unblocked, it deals heavy damage and can kill anyone not at full health. It can also combine lethally with Gust of Winds.
All: If targeted by her three-hit frost light-attack combination, shield or block on a Magicka build, or block or dodge on a Stamina build. Two unhealed hits are fatal.
Healer: Watch for whoever she is targeting and heal them through the three-hit combination.