I got a pet from the overall quest the first day, and I haven't gotten any more of the spirits from the dailies ever since. I haven't done every spirit tamer every day, but I'm doing at least 2 every day.

Yay RNG.

Sounds like what you're asking for is a somewhat subjective thing. Any pet can come in "rare" quality, but if you mean ones that tend to be rare in quantity, there is no definitive list. Minfernal, Scourged Whelpling, Baby Ape, Silithid Hatchling are fairly certain to be on anyone's list t...

Hands-down the Minfernal. Always camped, always at least 10-15 people there after server resets/maintenance, my server has yet to come up first in the CRZ after a reset. I have never seen one. Everything else has been comparably easy to get with a little bit of vigilance and/or a server reset.

According to the Pet Journal, name - source (appearance): Mini Mindslayer - Prophet Skeram (white/green Skeram) Viscidus Globule - Viscidus (Viscidus) Anubisath Idol - Emperor Vek'lor (Anubisath) Corefire Imp - Magmadar (red imp with fiery aura) Ashstone Core - Golemagg (white/grey geode) Harbinger ...