Originally Posted by
Lorianna
Like Tyrande, I haven't done the math on it, but I have several characters that use the primal avatar mantle, because it's just so damned good.
On melee: It feels like it's around a 60-80% proc rate. Almost every swing will set it off, until it uses up those "three charges" (ie, one of each elemental type that the aura can have). Scaling-wise, it has the same spellpower you do, so the more you have, the harder you hit. I have the thorn mantle on my druid, and when my dog sets it off, it hits for around 2500 -- which, by the way, makes my wolf actually quite useful even in reaper mode, as he's durable enough with the gear I have for him and the bonuses to health and such (he has around 3200 hp), and can deal substantial damage. It almost always goes off on my first swing to start the fight -- I'd say about 95% of the time it procs on the first swing if I haven't hit anything in a while.
For casting: It's about the same proc rate, and will typically go off with the first spell you fire that has that elemental type. With spells that deal multiple forms of damage at once (for instance, I use the sky mantle on my spellsinger, as thunderhorn deals both sonic and electrical damage, so can proc both), and occasionally multiple procs will go off at the same time. On my druid with the thorn mantle, casting carrion swarm will fairly often proc both the acid and poison elements on the same cast.
Overall, I've found that the primal mantle is probably my favorite, both for melee and spellcasters that can trigger multiple elements. I'm trying out the "heart" mantle on my paladin as well, so she can trigger it with melee as well as the SLAs for the fire proc. So far it seems to work fairly well, and it makes her insanely tanky.