I was wandering through the Desert Resort on Pokemon White 2, and I found a Sigilyph - nothing unusual there - the difference was, this one made a sort of circular effect when it was released, and I may have been imagining it, but I swear it said "A wild Sigilyph has appeared?" when it came into battle. It wasn't a shiny - did it have PKRS?

It used whirlwind before I could catch it, so I may never know :( Does anyone know what just happened?

Pokemon with Pokerus don't make any effect upon coming into battle. If you've used Memory Link with one of the originals, it was probably N's Sigilyph, if not, it was a shiny. If the latter, you may now start crying c:

I did use memory link - I'm assuming that I'll be able to reencounter N's sigilyph? xD

I have no idea what anything in the OP means. :(

Okay, now I've just found N's Darmanitan. I'm assuming these aren't super rare xD

I think he came in contact with a STD called Syphilis

Hell have to summon Penicillin and use uh...fuck.  I wish I knew some Pokemon jargon.  I only remember the old cartoon and Pokemon Puzzle League.  Pika, Pika!

Not really xD If you beat them or get blown out of battle, you can encounter them again, but once you catch them you can't encounter them anymore.

Be glad you did

40 second mark

What the hell man. This guy is going to be a virgin forever, I'm calling it.