Does anyone have some test results as to what % chance this one has to proc its damage? I mean as it looks from just reading the tooltip, it seems super lackluster, but if it had a high proc chance it might not be all that bad to pick if you run "Channel Demonfire" as destro, due to the high amount of attacks in a short time...
In comparison, the other two do not look that strong either however. The bigger pets are not really much stronger, especially when you look at the doomguard casting 2.6 seconds for 13k damage vs imp casting 1.5 seconds for 9k (due to 50% from immolate on target) and service only seems to be suited for pvp when you need some extra utility or burst. (values from PTR, so no idea what they are on beta right now)