Lep Seclusa

Sparks

Tank: Block his heavy attack cone (Sparks).

Thunderstorm / Thunder Thrall / Overcharge

All: Avoid the moving and exploding lightning effects: Thunderstorm's travelling bolts stun on contact, Thunder Thrall explodes where he jumps, Overcharge explodes around him.

Conduit

Healer: Heal through Conduit's damage-over-time effect; it is not punishing, but move out of its shock effect as well.

Add Interrupts

Tank: Taunt adds and pull them behind a rock together for easier group interrupts.

Dps: Interrupt the Infuser's Infuse and Shield, the Storm Mage's Expansive Shock, and the Flame Archer's Rapid Fire and Flaming Arrow Spray.

Whirlwind

All: Avoid the small dirt effects from Whirlwind.

Trauma (healing absorption)

Healer: Heal Trauma-afflicted players for roughly 25,000 to clear the healing-absorption debuff from Whirlwind and Piercing Dervish.

Piercing Dervish

All: Stand to Garvin's left or right; Piercing Dervish hits front and back.

Wild Spores

All: Stay within healer range; Wild Spores is a heavy damage-over-time effect that hits everyone.

Ricochet

All: If tagged by Ricochet's poison link, break line of sight behind a rock within six seconds, or both linked players die.

Venom Eruption

All: Break line of sight behind a rock during Venom Eruption, or you die quickly to the Venomous Clouds.

Monstrous Duneripper adds

Tank: Face Garvin toward a spawned Duneripper so his Noxious Boulder kills it outright.

Dps: Do not attack the Dunerippers; they instantly enrage on damage. Let the Noxious Boulder kill them, or ignore them and focus the boss and adds quickly.

Hunter's Trap

Dps: Interrupt Hunter's Trap placement after Garvin vanishes, or traps keep stacking and can aggro Dunerippers.

Ballista Mechanic

All: Repair and fire all four ballistas on the ground to force Malthoras down off the ledge.

Fire Bomb

All: Move off the Fire Bomb effects at your feet.

Directed Volley / Volley

All: Block Directed Volley when targeted; it can also be interrupted, but blocking is the reliable option. Move quickly out of Volley's escalating ground effect.

Quakeshot

Tank: Watch for Quakeshot's small effects bouncing off you toward others.

Shattering Stomp

All: Get out of Shattering Stomp's large effect, or be knocked back.

Brand

Tank: Block Brand, a heavy attack; dodging it enrages the boss.

Chain Pull

Tank: Always run after Noriwen when she charges away, or you are Chain-Pulled and hit with a heavy Ignited damage-over-time effect. Cleanse it if it lands, for example with Efficient Purge.

Blast Powder

All: Move off Blast Powder's ground effects; they apply a lighter Ignited damage-over-time effect.

Gryphon Bombers

All: Block or dodge Gryphon Bomber swoops so you are not staggered into another effect.

Flame Gryphon add phase (50%, 40%)

Tank: Taunt the Flame Gryphons when they spawn at 50% and 40% health; keep following Noriwen once she rejoins.

Dps: Bring the Flame Gryphons down quickly; Noriwen rejoins the fight once they die.

Flame Gryphon Riposte

Tank: Block the grounded Flame Gryphon's Riposte cone attack.

Alcunar Wing Gust

All: Avoid Alcunar's Wing Gust sweeps from the ledge (a Conduit shock damage-over-time effect plus an area effect).

Imminent Eruption

All: Interrupt Imminent Eruption immediately, and never stack with another player. Eruption deals roughly 50% of your health as unmitigable Oblivion damage; block, dodge and shield do not help.

Heat Wave

All: Move out of Heat Wave's path; it applies an Ignited damage-over-time effect to anyone it clips.

Flame Aspect: Firestorm Waltz

Dps: Interrupt the fireball-casting Flame Aspect's Firestorm Waltz.

Blazing Shalks

Dps: Kill Blazing Shalks quickly; the Molting Flames patch they leave stays until they die.

Reality Fracture

Tank: You will be hit by Reality Fracture; there is no way to avoid it.

Healer: Never stand on or near the tank; Reality Fracture's effect hits anyone nearby with almost no time to react.

Dps: Never stand on or near the tank; Reality Fracture's effect hits anyone nearby with almost no time to react.

Confine (Arcane Planemeld wall)

Tank: Face away from the direction of travel and follow the moving Confine wall at the edge. This keeps Orpheon outside his own wall, so he casts Forbidden Knowledge less often and DPS can hit him more.

Forbidden Knowledge

All: During Orpheon's invulnerable Arcane Planemeld phase, at 80%, 50% and 30% health, dodge roll once in the clear area to avoid most of the 11 homing Forbidden Knowledge projectiles.

Arcane Hulk / Wraith add phase

Tank: Taunt the Arcane Hulk and Wraith immediately when they spawn.

Healer: Stay out of Arcane Void; heal through Forbidden Knowledge chip damage on the group.

Dps: Kill the Hulk and Wraith before the small adds; avoid their Arcane Void effect.

Abyssal Reach / Abyssal Tendril / Alcunar side hits

All: Abyssal Reach tendrils, Alcunar's side hits, and Abyssal Tendril swoops barely hurt. Block them and do not worry about dodging.

Alcunar Wing Gust

All: Avoid Alcunar's Wing Gust sweeps (a Conduit shock damage-over-time effect), as in the Noriwen fight.