The thing about resetting, you might have been *just* about to run into one.

Just stay out of Omega's basement and you should run into them from time to time. They do like to cast statuses on you though, I think it's mostly beserk.

I know how it is, though. I had the hardest time finding puroburoses, and they friggin' come in *threes*.

You can capture a maximum of ten for each monster though, so just keep working on that and occaisionally resetting and you should come across them.