Well, I was interested in seeing all the different rare pokemon that can come out of the pokeballs. So, I set up a pokeball only match.
One of the pokemon was especially interesting.
Now, for those who don't want to know what it does, I'll put it in spoiler tags.
Spoiler Alert!It gives you 4 trophies (Or, at least I got 4).
And, after the match it said something like:
I just thought that was really cool.You encountered celebi for the first time.
This is a rare site indeed.
Sorry if it's been posted before. =O
To be honest, I didn't really look around too much. =|
I'd be foolish to think I was the first to discover it; So, don't think I'm coming off that way. =D