Obsession.... i actually have only 2 rares... because i just never seem to get that 3rd one in the spins, my only ones are druidic staff (terrible) and eternity (which i was lucky enough to win from a level 1, didn't even know they had it).
The card i picked was titan and i also found 2 vamp daggers which i sold in my noob moments because i didn't think they went with the deck...
This is why there really needs to be a way to get rares without farming... or at least chose which god you fight, but maybe you must fight each one before fighting the same one twice? that wouldn't work, but the randomness of it all just annoys me. Oh well, don't want to make this a feature suggestion thread so i'll stop now