02
Mar
11

A Rogue in Cataclysm – Omnotron Defense System

This post describes rogue tactics for a boss fight in Blackwing Descent. The focus is on the 10-man version of the fights, since that’s what most people will be running. If you have suggestions for alternate strategies, or if I say something that you disagree with, please put it in the comments.

This is not meant to be a full raid strategy guide. It are written to describe the role of rogues (or other melee dps) during the encounters. For full strategy guides refer to Raid Boss Strategies or WoWWiki.

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The Omnotron Defense System is a council-style fight located in the beginning of Blackwing Descent.  Raids can choose to do this fight first or Magmaw first.  There are four golems and they have a shared health pool.  This is a very busy fight with a lot going on.  Mostly, the fight is about avoiding damage.

There are two out of the four golems active at once.  Whenever a new boss activates, one of the alread-active bosses gets a shield, and another one deactivates.  You should always move to attack the unshielded active golem.

Here are the four bosses:

Toxitron

  • drops a cloud that does AoE damage and also increases the damage taken by anyone in it by 100%.  Stay out of the cloud.  If the tank manages to position Toxitron in the cloud, then he, too, would take double damage so that’s a good time to pop a dps cooldown.
  • summons slime adds that fixate on someone and chase them.  Do not melee them.  When they die, they explode Be careful meleeing them.  If they reach their fixated target, they explode and will surely kill you if you are close.  If you get fixated, kite them while ranged dps kills them.  If they fixate on someone else, hit them a bit, but make sure you are not near them when they explode.  Also, if they fixate on you do not Vanish.  If you do, they will switch to another target that will be caught unaware.
  • his shield puts a stacking DoT on anyone who attacks him.  Since we attack fast, that would stack up very quickly.  Don’t attack him when his shield is up.  If you do, accidentally, you could probably Cloak off the debuff, but don’t.

Magmatron

  • does a pulsing fire AoE.  It doesn’t hit that hard, and you can Feint it to make it even less to worry about.  Do not Cloak to avoid it.
  • casts Aquiring Target.  He targets someone and aims a red beam at them.  This beam will follow the person.  After four seconds he will send a fire blast along the beam.  It will hit whoever was targeted, along with anyone else along that line.  If you are targeted, you can either Cloak or Vanish and the targeting is canceled without hitting anyone.  Save your cloak or vanish for this. If someone else is targeted, make sure you are not in line with that person.  (Vanish used to work to avoid this, but no longer does.  Use Cloak)
  • His shield absorbs damage and will explode to wipe the raid.  By all means, do not attack his shield.

Electron

  • Targets someone and charges them, making them do damage to everyone around them.  You can cloak this off, but its better to save your cloak for the Acquiring Target.  Just make sure that you aren’t near anyone for the duration of this.
  • Does a chain lightning that, as usual, increases damage with each jump.  Try not to be in a big group when that is cast.
  • His shield does damage when you attack it.  Don’t.

Arcanotron

  • create as blue circle zone on the ground that buffs the damage of anyone in it.  The tank will drag the golem out of it.  Try to stand in it yourself if you can.
  • cast Arcane Annihilator, which is a very large single target attack that can hit anyone in the raid.  Can and must be interrupted.  He casts it every 5-6 seconds, so it will take two people to keep it interrupted.
  • his shield turns incoming damage into a buff for himself.  That buff can be spellstolen, however you should avoid hitting him when the shield is active.

If you are on interrupt duty, then you will stay on Arcanotron even when his shield is up, because he continues to cast the Arcane Annihilator.  So you will just stand next to him, doing nothing, until your turn to interrupt comes up.  The problem is that when you Kick it will restart your autoattacks, and you’ll be hitting his shield.  I use a macro that says

/cast Kick
/stopattack

so that it does the kick without buffing him.

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Here’s the way the fight goes:  First golem is up at the start.  You’ll focus on him for the first part of the fight.  It might be worth it to burn some dps cooldowns here since its one of the only times in the fight you will have uninterrupted dps.

When his energy bar gets down to 50, he will put up his shield, and a new golem will activate.  You’ll switch to the new golem (unless you were Arcanotron and you have to stay there for interrupts).

You’ll fight that golem until his energy bar hits 50, and then switch again.  And so on, and so on.

All the while you are using Feint for every AoE attack (poison cloud, fire pulses, lightning aura) and saving your Cloak or Vanish in case you get targeted by the Acquiring Target from Magmatron.  If the slime adds fixate you then you need to run and kite them until ranged kills them.

The trick is to be aware of which two bosses are up at any time, since you can be hit with abilities by either one.  It helps to have a good raid leader that calls things out when golems activate or deactivate.

Sound hectic?  It is.  But its a lot of fun.  And it has some sweet rogue loot.  You could get the Organic Lifeform Inverter, which is the best available dagger for rogues who aren’t doing heroic modes.  Also there is the Poison Protocal Pauldrons, which are similarly the top shoulder item short of heroic modes.  Finally there is the Lightning Conductor Band which is a very nice epic ring.

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8 Responses to “A Rogue in Cataclysm – Omnotron Defense System”


  1. March 2, 2011 at 9:25 am

    Useful information for any melee class really, thanks for a nice post :)

  2. 2 Finnei
    March 2, 2011 at 10:58 am

    You said save Cloak and Vanish for Magmatron. Does that completely stop his Acquiring Target or just push it off on someone else?

    Just got Poison Protocol Pauldrons off of ODS last night. They look ….. interesting. My favorite color is blue, so I’m fine with it. I’m not much of a PVPer, so I would have preferred the dagger instead of grinding Conquest Points. Beggars and choosers.

    • 3 Finnei
      March 2, 2011 at 10:59 am

      Answered my own question…..I see you said that it completely cancels the targeting. That’s great to know. Thanks.

      • March 3, 2011 at 10:05 am

        Yeah, I think I startled my raid leader with that. I got targeted and I was standing in the middle of the melee group, and I didn’t move too far away. Then when I hit Cloak the targeting beam just went away. My raid leader’s response: “Oh, nice.”

  3. March 3, 2011 at 11:55 am

    Omnomnomnomitron

    Thanks for the guide and tips! You rock!!!

  4. 6 Tyberious
    March 5, 2011 at 12:18 pm

    Good article just one thing on the slimes, melée can dps them. They only explode once they get close to whom they are fixated on; just make sure the fixated target stays far away.

  5. 8 Cräpstick
    March 27, 2011 at 3:09 am

    Great post. You made a messy fight sound easy. Just one thing. I was browsing through the world of logs(WOW raid database) and i realize all the top combat rogue have blade flurry as their top damaging skill.

    http://www.worldoflogs.com/reports/rt-65virtuytxna4dl6/details/11/?s=8049&e=8222

    From what i know, this fight is all about – hit-this; dont-touch-that -so where did the blade flurry opportunity rises from? Or was it just my guild doing it differently? Anyone one with such experience?


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