Q: What about X debuff?A If you want to maximize your raid DPS, debuffs not included in this list should be avoided. When you see anything but the allowable debuffs on the boss, you’re usually watching your raid DPS being lowered.
Q: Mitigation debuffs?A: If your healers don’t need things to be easier, mitigation debuffs shouldn’t be used. (Demo shout, thunderclap, etc.) If your tanks are too cheap to buy stoneshield potions, are undergeared, or are raiding with few healers, feel free to use mitigation debuffs.
Q: What about with a different raid composition? A: This list of debuffs applies to a ‘normal’ raid composition. In extreme circumstances, some debuffs would get cut. For example, with one mage in the raid, you could drop COE for another corruption. With no melee in the raid, you could drop COR and faerie fire for corruption. (Yes, anything that gets removed should be replaced with corruption.)
Q: Gift of Arthas? Crystal Ward?A: Gift of Arthas isn't worth applying, except on Twins. You
can use Crystal Ward with melee-heavy groups, ideally in place of Hunter’s Mark. Its armor reduction stacks with sunder/faerie/COR.
Q: Why two corruptions?A:If you try to use more than two corruptions, the third is very likely to push another corruption, or get pushed off before it finishes ticking. (Had mixed success with using 3 corruptions on other realms, but experts maintain 2 is the optimal number -- try with your own raid.)
Add-OnsDebuff management is serious business. You can use
Snelf's Smart Debuff Check to ensure these debuffs are always up on the boss. Just type /sdc to get a report of what's up and what isn't. The addon is also smart enough to check your raid comp, so it won’t bother you about curses if you don’t have a warlock, etc.
http://www.mediafire.com/download/zsmcel6v1g5lw4j/SmartDebuffCheck.rar