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Npc box combat
Race Dragon (Dragonkin)
?? Boss
4,800,000 (10-man) 22,312,000 (25-man)
Wealth 182Gold 23Silver 68Copper

Onyxia is a level ?? black dragon boss in Onyxia's Lair.

Onyxia's 10-man abilitiesEdit

Onyxia has approximately 4,800,000 HP.

Phase OneEdit

Onyxia melees for about 12-15,000 on plate. Onyxia is tauntable.

Phase TwoEdit

File:Onyxia deep breath details.jpg

Onyxia takes off at 65% and has no threat table.

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  • Spawn Onyxian Whelps - At the beginning of phase two and about every 90 seconds after Onyxia will spawn 40 Onyxian whelps with 60,000 HP who melee for 500 or so on plate. 20 will come from each side of the whelp cave.
  • Spawn Onyxian Lair Guard - Every 30 seconds or so in phase 2 Onyxia will spawn an Onyxian Lair Guard with 190,000 HP. This will cast Ignite Weapon which adds 25,000 fire damage to its melee attacks, and Blast Nova which does 25,000 fire damage to targets within 10 yards. Note that these guards can be disarmed, which prevents them from being able to damage anyone with Ignite Weapon.

Phase ThreeEdit

Onyxia lands at 40% HP. She retains all her phase one abilities and gains some additional abilities.


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This is (still) a very simple encounter overall. For strategy videos of both the 10-man and 25-man encounter, look below the loot table on this page.

Phase OneEdit

The tank should run slightly ahead of the rest of the raid and grab Onyxia, quickly turning her away from the raid and then backing off to the Northern wall, where the tank will position themselves with their back to the wall to minimise the effect of the knockback from Wing Buffet. Only the tank should be in front of Onyxia, to minimize damage from fire breath and cleaving. During phase one, the only damage to the raid should be upon the tank. Ranged DPS and healers need to stay to either side of her, fairly far back. Melee DPS needs to stay just within range (which is wider than it looks). If melee DPS is too far forward, they will be killed by Cleave; if they're too far back, they will be tail swiped, possibly into the whelps, usually resulting in a wipe.

Phase one ends when Onyxia is reduced to 65% health.

Phase TwoEdit

During this phase, Onyxia takes to the air and moves randomly around the room, casting Fireball on raid members. There are three main things to watch out for:

  • Onyxian Whelps. At the beginning of this phase, and subsequently about every 90 seconds, 2 packs of whelps will spawn, one from the egg chambers on each side of the room). These whelps should not be underestimated, as they can do considerable damage with all 40 attacking the same target. They should be gathered by the off tank and then killed with AoE attacks.
  • Onyxian Lair Guards. After about 15 seconds and subsequently about every 30 seconds, an Onyxian Lair Guard will spawn at the entrance to the room. These need to be tanked with a dedicated healer for the tank. Melee DPS should focus their attention on killing these as fast as possible, as having more than one up at a time can overwhelm a tank. If you aren't able to kill one before the next one spawns, some ranged DPS may need to assist. Be aware that the guards hit very hard, and have a periodic AoE (Blast Nova 10 yard range) that can easily kill the melee DPS around it if not careful, leaving not enough DPS to kill the Guards quickly enough, and allowing them to overwhelm the raid. This AoE has a cast time, and is easy to run out of if you don't underestimate its range. Onyxia must be brought down as quickly as possible by ranged DPS, as the Guards will stop coming once phase two ends.
  • Deep Breath. At random periods during phase two, Onyxia will emote that she is taking a deep breath. When this happens, note her position, direction and get out of her path. A few seconds after the emote, she'll fly straight in the direction she's pointing and leave a trail of massive, fiery damage about 10 yards wide. If in doubt, run all the way to the nearest side of the room or against the wall behind her.

During this phase of the encounter ranged DPS should be focused on bringing Onyxia down to 40% to start phase 3, although they must interrupt this to AoE the packs of whelps. Melee dps should focus on killing the Onyxian Lair Guards.

Phase 3Edit

Onyxia will land on the Southern side of the room and immediately cast Bellowing Roar, causing the raid to run in fear for the next 3 seconds. Finish off whatever adds remain while the tank positions Onyxia. Note that, unlike the level 60 encounter, the tank will have retained aggro on Onyxia from phase 1. It's advisable to ensure that the tank is unaffected by the initial fear, so that Onyxia can be positioned correctly (fear ward, berserker rage, tremor totem).

Phase 3 is essentially the same as phase one aside from periodic fears, some raid damage from eruption and occasional whelp spawns which are not too dangerous.

Differences from level 60Edit

Onyxia no longer drops threat between phases 1 and 3, and she is no longer immune to fire effects and abilities. Deep Breath's cast time has been increased. Onyxian Lair Guards now spawn in phase 2, and melee can no longer hit Onyxia in phase 2. Lava eruptions happen during the Bellowing Roar fear, not just after it.











Related achievementsEdit

Many of the new achievements are named after famous sentences taken from the Onyxia Wipe Animation, later transformed into a Raid Assistant.

Patches and hotfixesEdit

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10-man encounterEdit

25-man encounterEdit


External linksEdit

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