Dragon Soul Mechanics

While keeping in mind that this is a rogues perspective it still holds a lot of value in general.

http://elitistjerks....raid_mechanics/

Morchok: (All from bi0bi0, could use confirmation)
- You can cloak the "Black Blood of the Earth" Debuff.
- I skilled Enveloping Shadows as Sub and managed to survive the Ability "Black Blood of the Earth" (in 25 Mode) every Time (even in the Softenrage)
Its important to Feint after 3-4 Stacks -> Cloak when first Feint fades -> Feint when Cloak fades without any delay, otherwise your Cloak will be on Cooldown for the 2nd or the 3rd because "Black Blood of the Earth" is on a 90s timer.
I still needed some external Heal. If your healer cant manage to keep you alive, i would recommend to spec Cheat Death. (With a Timer for Black Blood of the Earth, it would be clever to use a Feint 6-7 seconds before, so that we also reduce the Damage in the first 2-3 seconds, and have Feint ready when the 3rd/4th Stack is applied)
- You can Feint the Stomp.
- You also take only a minimal amount of Damage from the "Tank" Stomp, so the tanking Tank can avoid the doubled Stomp damage. (Sidenote:The two closest targets take a double share of the damage.)
-Sub may be the best spec.
-May want to equip a throwable ranged to use during the crystals in order to keep deadly poison up.
Heroic:

Yor'sahj the Unsleeping:
-Combat vs Assassination is under debate. Combat cleave is very useful, but the AoE of FoK may be much stronger.
-Sprint should be up for every ooze spawn phase, use on CD to get to them quickly.
Heroic:

Warlord Zon'ozz:
-Cloaking the orb works. The orb does have a cooldown between when you can trigger it. The cooldown can easily be seen by visual cues.
-Feint'ing the orb works to reduce damage taken.
Heroic:

Hagara the Stormbinder:
-Combat will most likely be the best spec for this fight. When the ice tombs go out, they should either be placed close to the boss or next to each other (at least on normal) for cleave purposes.
-Smoke Bomb protects players inside from Ice Lance damaging them. Once targeted, the bomb should be placed and players should move in to protect themselves from the incoming damage.
-Vanish also temporarily stops you from getting hit by Ice Lance.
-Cloak can immune the conductor lightning damage, but only seems to do it for the first second of cloak.
-Cloak removed the stacking debuff during the lightning phase.
-Keep Sprints/rocket jumps for moving back into the middle after bubble shield burst, as she takes increased damage.
Heroic:
-Imp Sprint removes the slow effect of frost traps.
-Cloak removes the slow effect of frost traps.

Ultraxion:
-Killing spree is working (for now).
-Feint works for the Hour of Twilight. You do not have to use the button to go down, just use feint. You will need to have over 150k hp in order to survive with this and it puts you extremely low. Consider keeping up a recup as it happens. ALSO CONSIDERING USING A STAM FLASK FOR THIS. As I said, you need 150k to survive and you have to HAVE 150k the moment it goes off. You can spec sub for the redux as well.
-The boss has a debuff that gives you 100% hit and makes it so you will not be parried (appears poisons can still miss).
-Cloak does not remove faded light, but you should be able to immune the effect with appropriate timing.
-Backstab and Ambush currently are not working from the front.
-Use Feint as often as possible.
-Cloak works on Hour of Twilight.
Heroic:
-If you take a Hour of Twilight, you get a 2 minute debuff. If you get hit again, you will be killed.
-You CAN cloak hour of twilight to prevent both damage (you will still get the debuff)
-You can stay down for 3 in a row by doing the following: CoS the first-->Feint the second-->CoS the third
-You may want to go Sub and take enveloping shadows
-Cheat does not work.

Warmaster Blackhorn:
-Cloak and Feint both appear to work on the little blast pools (small purple pools).
-As for the large blasts, this was copied from one of my guilds test groups. They did not have a rogue with them, but this was their finding: "Large blasts should ideally be soaked by a majority/all of the group. Barring that, a fire mage with cauterize can definitely solo a large blast, as can a shadow priest with dispersion. Immunities such as ice block and bubble will not work"
-Damage reduction cd's work on the large blast pools. It is possible to solo "tank" the blast with a damage reduction cd. We used spriest with dispersion, so I was unable to test solo tanking with Feint, but it could potentially be viable.
-Keep the big adds together for cleave. BF is very effective.
-If the sapper makes it to the room and you are too close to the door, Feint works to reduce damage taken.
Heroic:

Spine of Deathwing:
-Cloak does not remove Searing Plasma
-Can Cloak/Feint the Superheated Nucleus
-Can Killing spree the tendons (there have been reports of being ported around the platform of his back, generally towards the opposite side from the tendon)
-Lots of cleave opportunity, combat may be best.
-Can shadowstep the tendons, but doing so teleports you to the rear of his back
Heroic:
-Feint works on corrupted blood's blast (what the do when they die).
-Blade flurry should be used with caution, as the blast damage and healing debuff could cause problems. Use best judgement based on environment and strategy.

Madness of Deathwing:
-Killing spree works
-You can BF off of the tentacles onto the arm, but not the other way around (sorry for this being so late, thought it was already on here)
-Can also BF onto the Elementium bolt (before Noz's platform) from the main tentacle and from Mutated Corruption
-You cannot attack the hands from the back, you must be in front of them.
-Shadowstep has some issues. Works on Alextraza's platform, but not on Ysera's or Nozdormu's.
-Feint and Cloak work on the elemental meteor smash.
-Feint doesn't work on Blistering Heat
-Feint/cloak works on crush from Mutated Corruptions
-Killing Spree DOES work in phase 2, but the visual is not noticeable.
-Apparently cannot be missed by auto-attacks (may want to considering reforging from hit, although you still need hit for poisons)
Heroic: