Syncronize is a 50% chance in the regular games.
The fact that there will be no breeding kind of crushed my hopes and dreams for this game. I was hoping that breeding Pokemon just took longer and that I could settle down and become a Pokemon breeder, which is how I enjoy playing the normal games. I don't get the point of having IVs at all if they're not something that can be influenced. It's something I'd expect a Pokemon MMO to fix.