
Welcome to Ulduar folks. If you made it past the lag, the vehicles, and the guard-dragon, and you didn’t get sidetracked by Ignis’ Hot Pockets, chances are you’ll soon find yourself standing in front of my favorite shiny robot in the game, the XT-002 Deconstructor. She just wants to give everyone a big hug . . . a spine-cracking hug, that is. She reminds me of eeeevil pet collector Elmyra from the Animaniacs. In all seriousness, Blizzard outdid themselves here. The boss’s animations and voice are oh-so-entertaining, and this fight provides a juicy-yet-manageable challenge for healers. Conquest downed XT on 4/21 using this strategy.
Essential Abilities
To effectively heal this boss, all healers need to make sure that their unit frames show the following three abilities. If you are a Grid or Pitbull user, add these to your custom debuffs.
Gravity Bomb
This ability places a debuff on a player. They need to move away from others to avoid causing AoE damage. This debuff does not tick immediately but rather does a significant chunk of damage at the delay of a few seconds. A player with Gravity Bomb will need a large heal once the ability triggers.
Light Bomb
This ability places a debuff on a player, and as with Gravity Bomb, the player must move away from others to avoid causing AoE Damage. This debuff is a strong, fast-ticking dot, and it lasts 9 seconds, dealing 3500 damage each tick. A player with Light Bomb needs immediate and steady attention.
Tympanic Tantrum
Of the three abilities, this one is the most dangerous. Tympanic Tantrum deals damage equal to 10% of each player’s maximum health every 1 sec for 12 sec. Nearby enemies are also dazed for the duration. Every player in the raid needs to receive a medium amount of healing in order to survive this ability. AoE and group heals (Divine Hymn, Circle of Healing, Prayer of Healing, Wild Growth, Tranquility) are good solutions.
Healing Assignments
In order to meet the dps minimum for the boss, you will probably need either 6 or 7 healers. These assignments will assume 6. Consult the following diagram for the optimum positioning of your 6 healers.

As always, the diagram is coded by class color. Our favorite arrangement uses a paladin and a tank healing-specced druid on the MT. On the raid, we have had good luck with using two priests, one shaman, and one raid-healing specced druid. In this diagram, you’ll notice that H3 and H4 are standing together, as are H5 and H6. The raid splits into two groups, and ranged dps stacks with raid healers. This grouping makes it easier for the person with Light Bomb or Gravity Bomb to run away. Your MT healers will have to cheat forward a bit of the pile of players in order to be in range of the tank. XT is big–approximately 10 yards across–and your tank will be on the far side.
Techniques
I’ve had the pleasure to both MT and raid heal for this fight, so I can share with you my top strategies for both positions. The key to this fight is using your abilities wisely.
MT healing
Two healers are necessary because this bot hits hard! Damage is spiky because the boss hits hard but swings slowly. We found a combination of a Resto Druid and a Holy Paladin to be very successful. The druid can keep some HoTs on the MT even through the Exposed Heart phase, in which there is no damage to the tank. We’ve lost the tank before when XT has come back with a vengeance, so be prepared with some HoTs or shields. Throughout the fight, the druid will probably be able to make a small contribution to raid healing. During Tympanic Tantrum, both MT healers will raid heal, and during the Heart phase, the paladin can probably dps, with the druid contributing as well if she is able to afford the mana hit.
Raid Healing
I learned the hard way that HoTs won’t cut it for Gravity Bomb and Light Bomb. For Gravity Bomb, have raid healers shield or pre-HoT and then time a big nuke heal to land as the bomb explodes. For Light Bomb, the player will need a series of quick heals (Flash of Light, Flash Heal, Lesser Healing Wave) or a combination of HoTs and direct heals. A Rejuv+Swiftmend is not enough. With my raid healing build, I was using HoTs + glyphed Healing Touch to good effect. Light Bomb is the more dangerous of the two bombs because it hits fast and hard.
For Tympanic Tantrum, HoTs and AoE heals are king. I was having great luck with Tranquility, Wild Growth, and Lifebloom during this phase. When you assign raid healers, make sure you distribute your AoE healers evenly on both sides.
Melee and Offtanks
There’s no way to get around doing double duty on this fight. At least one offtank will assist a couple of ranged dps with controlling the adds. Specific Raid Healers (perhaps H4 and H5) should be assigned to keeping the adds team alive.
Melee will need some attention, but Judgement of Light, if you have it, goes a long way towards keeping them healthy. We assigned our Resto Shaman to chain heal the melee group when she could.
DPS the heart!
All of the non-tree healers in your raid should switch to dps-ing the heart when it is exposed. Every little bit helps you meet the very high dps demand! I also recommend that any raid-healing druids switch forms and dps the heart. However, the MT healing druid should keep her HoTs on the tank, because XT returns suddenly and with a vengeance. If she can sneak a Moonfire in there too, by all means.
Mana Control
This fight has a few moments that will allow for OOFSR regen. It’s fairly tough on mana, and you will probably use a potion and your mana-restoration abilities (Innervate, Shadowfiend) if you are only carrying six healers. The fight is short with a 6 min enrage timer, but it’s fast and furious, so you can blow your mana if you’re not careful. If you find yourself running out, take a break instead of using your mana for offensive spells when the heart is exposed.
A Healer Check?
This boss tests healers in more ways than one. I like to think of it as a healing assignment check. Everyone has to do his or her specific job, and there’s no time for sniping. Moreover, you need a good balance of single-target and AoE heals to pull this off with 6 healers. There is both heavy Main Tank damage and extensive raid damage. Expect to use all of your skills.
