Talk:The Answer/@comment-27965675-20160105122431/@comment-4929778-20160105182244

It is because each gem is meant to act a certain way and have a certain personality. Like Jaspers are meant to be intimidating and pearls are meant to be quiet. When different gems fuse they combine the personality traits of those gems and since the personalities are often different one way or another the fusion has a random and gambling personality.