I found my first one 3 days ago (after a year+ of playing) in the WSK level 1 with my Meteorb (first Sorc I've ever played). I was doing full clears in a 3 player game and found it from a skeleton archer. Total MF%=150.
I've found a couple before when I was farming NM Andy a while back. It's been a while since I've seen one though.
Sucks about the poofing, but you'll find one in the near future ^^ Just make sure you're not looking for one or else it'll never drop.
Meh. If some guy trades me a duped rune/SoJ and his crap poofs on me, rather than trying to track down this random guy and get my "revenge", I'll just use the time to work on getting another rune/SoJ. :tongue: