Talk:Team-Up AP/@comment-172.56.41.63-20141214101148/@comment-2045890-20150519040826

That is because we do not actually know what the precise rules for selecting team-ups are. One can easily observe that not all possible team-up powers are equally likely to be chosen for the AI (e.g. you'll never see 1-star team-ups in high level PvP), but trying to deduce anything more substantial than that would likely require more effort that most players are willing to invest. The obfuscation in the article is thus a reflection of our ignorance I think.