It might have been a while ago since you did your rep grind for either the Frenzyheart Tribe or The Oracles. You might have even changed alliances for Mercenary of Sholazar or the rewards. I actually did both for those reasons, changing from Oracles to Frenzyheart once all the rewards I wanted were in my possession.
Being a pet and mount collector, I was anxious to start my rep grind with The Oracles. Upon revered reputation you can start buying the Mysterious Egg which turns into a Cracked Egg after three days (real time). This egg has a chance to contain one of four companions, a very rare Green Proto-Drake or some Aged Yolk. Bad luck if you get the Aged Yolk though as you’ll have to wait another three days for another egg to hatch. Older players could rejoice as it used to be a seven day wait!
Once again at revered reputation, you can start buying the Disgusting Jar which also needs a few days to ferment and has a rare chance to give you another costume item. This is not a trinket so you can use it as long as it’s in your bag, lasts 5mins and has a 30min CD.
So whatever your preference, there’s sure to be something for everyone… provided you have the patience for the rep grind and three day wait each time.