Board Thread:General Discussion/@comment-24895893-20140519123837/@comment-24972242-20140608124956

It's probably random from what I've experienced. After farming low level areas a lot I encountered quite a few princes. Sometimes you win them, sometimes you don't.

The chance of winning merging spirits might be higher than other spirits but I'm not sure about that. Perhaps I should do some research and track the spirits I win from battles.