So far I’ve seen four pets of the Spiritmaster: Fire, Earth, Water and Wind. The Wind Spirit looks like a small griffin with a white / blue mane. The Tempest and Magma spirits appear, depending on your Faction, at level 50.
At about level 25 I’ve seen these pets. I prefer the Wind pet, although they all probably do the same damage and I’m not clear on any reasons for choosing among them.