Lvl 53 Mage Fire Pet, what's the point?

[Shadowrat]

Just got this pet and don't understand it's role. Fire pets have been my goto farming pet. Just got this one and threw it at a few Drolvargs (one at a time) near FV outpost and was disappointed by its performance. The pets damage shield was doing like 4 pts, and it occasionally cast a nuke. The pet seemed to run out of mana after a kill or so and was half dead after a fight.

What is the use case for this pet?

Thanks