Good Buff Stackability Rule of Thumb / Reference?

[Gilga]

Does anyone know a good rule of thumb, or resource, on the stackability of buffs? Wowwiki is totally letting me down.

What I'm particularly wondering is how stackability works among
a) Players buffs (e.g. AB, MotW, Fort, etc)
b) Potions/Elixirs/Flasks
c) Scrolls
d) Food buffs

Obviously you can cross-buff (a) to the maximum extent possible (e.g., you can have any combination of players buffs stack).

For the rest, b) through d), I believe, you can only have one going at once ... e.g. one buff potion (e.g. Greater Fire Resist), one scroll (e.g. protection), and one food buff (e.g. blackened Sporefish). I think there's an exception around elixirs in that you can have both a "battle elixir" and one "guardian elixir" going at the same time, but am not really familiar with that.

I think, also, that you can't stack buffs that have exactly the same effect ... e.g., you can't stack AB with an Intellect scroll.

But is the rule generally that you can have one buff of each buff source (except player buffs), but so long as they're different everything stacks after that? Or is it more complicated?

 

[Samuraij]

Believe Potions are stackable Gilga

Elixir of Wisdom, Mageblood, Firepower, and Mana oil etc I have had all going for a Kara run.

 

[Quantum_Man]

Straight from the official patch notes from 2 patches ago.

Elixirs now stack in two categories, Battle (Offensive) and Guardian (Defensive) Elixirs. You can only have one of each type of Elixir up at a time. As a result Elixirs now stack with class abilities such as Arcane Intellect.

For myself, I can have an offensive +spell dmg elixir, a wizard oil on my weapon, and a food buff on myself all at once. So the same would apply to a healer. Depending on the catergorization of +healing elixirs and +intellect/spirit/whatever elixirs, if one is guardian and one is battle, you could have both a Elixir of Healing Power and a Elixir of Intellect say, on at the same time, in addition to Mana Oil to your weapon and your food buff.