The Hidden Forest

Doing some testing with it in GH ive come to notice that although the AA says "This ability calls a loyal servant into being who will repeatedly hurl fire at your target." i've got it maxed and summoned it on a dummy to see that it does nothing, no dmg just a waste of AA atvm

Swarm pets don't play nice with dummies. It works perfectly on "real" mobs.

just tried on a mob and still does nothing, just sits there and looks stupid, however Host of the Elements which is the swarm pet does work

I'm not sure if damage isn't reported to any chat windows or if perhaps I have a filter that conflicts, however, I went to Crushbone and got: orc centurion has been slain by Feydakin's pet!

Clearly, it does something... so I think the question becomes how much?

hrm, if it truly does do something, when i tried in Quimini to did flat out nothing to even think about hurting one of the rat'uk's near the entrance while waiting for guildies to do silver badge event. i have all combat related txt going into one window as to not interfere with anything and showed nothing so.. "shrug" maybe needs to be tweaked or something? since as of right now on higher lvl mobs it doesn't even bring em from 100% to 99%? and actually continuously fire flames like the description in game says since i only ever see one animation? idk, would like to see some sort of tweaking so i don't feel like it's a waste of AA.

I believe the raid parse dummies work with swarm and summoned pets. I won't be on for a while today but you could try a 30 second parse and see what it returns.