Nethersprite is a 2 phase fight and one of the most complex fights in Karazhan, requiring a lot of finesse.
Nethersprite has an aura on at all times reducing armor by 100 and another dealing 1200 shadow damage every 5 seconds.
During both phases Void Zones will be opened around Nethersprite dealing shadow damage quickly.

Encounter

Phase 1

The MT will hold Nethersprite in the center of the room, 3 portals will open streaming a nether beam that buffs Nethersprite.
Players can stand in the beam to gain buffs and a debuff.

* Dominance “Blue” – Spell damage increased by 5%, threat from spells reduced by 1%, damage taken by spells increased by 5%.
* Perseverence “Red” – Damage taken reduced by 1%, defense increased by 5, maximum health reduced by 200.
* Serenity “Green” – Healing done increased by 5%, threat reduced by 1%, maximum mana reduced by 200.



These bonuses can stack every second in the beam and can stack up to 99 times. When a player leaves the beam they will get a debuff and can not take that beam again for a minute and a half.

Mages or Warlocks should take and hold the Dominance beam.
Our MT and OTs should rotate holding the Perseverence beam, also rotating who holds his agro based on who has the beam.
Serenity beam will be rotated with the Priests, Paladins, Shamans, and Druids; if Serenity hits Nethersprite it will heal him for 1% health every second.

Phase 2

The 3 portals will close down and Nethersprite will begin casting Netherbreath randomly at raid members, it is a cone attack dealing heavy arcane damage and knocking those members back.
DPS should remain on him in this phase, when it ends 30 seconds later he will return to normal and the portals will reopen sometimes rotated clockwise from their former positions.

These two phases will repeat, it is important that we do not let the nether beams reach Nethersprite and communication on who should and can take the beam needs to be expressed.

Party Roles

Main Tank / Off Tank
Phase 1 Maintain agro Nethersprite and rotate control on Red beam
Phase 2 Maintain agro Nethersprite

Melee DPS
Phase 1 DPS Nethersprite
Phase 2 DPS Nethersprite

Mage / Warlock / Possibly Shaman
Phase 1 DPS Nethersprite and hold Blue beam
Phase 2 DPS Nethersprite

Healers
Phase 1 Entire raid needs heals, rotate control on Green beam
Phase 2 Heal raid

Video of the encounter:
http://www.youtube.com/watch?v=Tf-2iw_aK90