You can look on the game wiki at
http://yarnspinners.improbable.org/W...itle=Main_Page
in the Proclamations section, I've been announcing uniques as I kill them (fighting the just fight!
)
There's at least a heliophagus and a demon lord up. Possibly others, depending on how religiously Puffyn's been resummoning them (or if other people have taken them; I'm not sure).
I'm pretty sure all the elemental royalty are taken - except there might be a fire king available, if Puffyn didn't resummon him.
Thanks so much for subbing, and hopefully you'll get sucked in and want to stay to the bitter (or sweet?) end!