Netherspite

From wow.incgamers.com

Found in Karazhan, Netherspite is basically a shadow version of Sapphiron with a twist. When you engage him, 3 orbs in this room activate a beam to shoot at Netherspite. When any given beam is active on Netherspite, it gives him a different stacking buff. To block the beam you must have a raid member stand between the beam and Netherspite and, in return, the beam provides the person with 2 beneficial effects, and 1 negative effect.

• 1 beam buffs defense/damage taken, but reduces max hp.
• 1 beam buffs healing/threat reduction, but reduces max mana.
• 1 beam buffs damage dealt/threat reduction, but increases damage taken.