Perhaps you should move on to something else then, because anyone that is obsessed with sounds and electronic music finds this fun and inspiring (I know I do).I don't want to hang out at the music store all day long and test every freakin sound
Anyway, any synth that has a decent MOD MATRIX as well as PCM or real time sampling can sound "dark" and "mystical". The problem is actually programming and sound designing, which Robert Rich happens to be something of a genius at.
Furthermore, Robert Rich records actual environmental sounds that he uses in his compositions. If you look at his studio list, he has just 3 or 4 main synths...the rest is effort and pure skill.
A last point; I'll say it a thousand times here at VSE; PRESETS DO NOT MAKE THE SYNTH.