Posted 20 March 2013 - 05:58 AM
Cloak has ever since it has been implemented back in TBC removed certain debuffs while it left others ontouched, and it has almost always been able to remove debuffs that were dispellable aswell as prevent their application. This didn't seem to be intended so in Cataclysm we saw a drastic change, forcing us to use the immune-part of CoS to get a similar effect, something which has changed again in MoP. While I wholeheartedly agree that in a raid environment it (and a few other spells aswell) shouldn't be able to prevent or remove certain debuffs, it worked on quite alot of encounters in the past years and still does so today, so it is hard to argue that it isn't suppoed to work as a dispell.
In the current tier there are a whole bunch of debuffs CoS removes or prevents.
Jin'Rokh: prevents/removes Ionization, still triggers it when removing
Horridon: removes Blazing Sunlight, Venom Bolt Poison, Deadly Plague, but does NOT remove Hex of Confusion.
Council: removes Sandtrap Slow/Roots,
Megaera: removes Cinders, still triggers the ground effect
Ji-Kun: removes Slimed Debuff (only the one increasing the damage, not the DoT itself)
Animus: removes Matter Swap, still triggers the damage but also immunes the damage one himself takes (so dispelling it with only 1 second left is advisable, as the other target will only lose 10% hp that way)
Qon: removes Scorched
I may have missed some, but basically every spell that is dispellable in the current tier can be removed with cloak. In the very same way it behaved on Primordius: Unless I'm mistaken there have been two changes ever since the first PTR testing. Dispells, most noteworthy revival, used to dispell every debuff at once, which was detrimental since it removed not only the stat-altering ones, but also the full mutation. It then got changed (this one made it to the release) so dispells would remove all debuffs except for the full mutation. Sometime between friday and saturday in the first ID they hotfixed it so dispells wouldn't work at all on beneficial debuffs, and cloak followed the exact same limitations. What I'm still unsure about is whether dispells in general can still remove debuffs as long as the target isn't fully mutated, or only remove detrimental ones. I am almost certain that cloak will follow the same limitations though.