Energy/Oil typing

Energy/Oil is a two-type typing. When a ball is unlocked, one of the two becomes its primary typing. It attacks with that type and defends with both. In the Open League, balls with it win 49.1% of their battles. They do best in Bronze, at 46.9%. With Energy as its primary typing, it attacks with Energy. Its attack is strongest against Energy. It's weakest against Cosmic, Ice and Nature. With Oil as its primary typing, it attacks with Oil. Its attack is strongest against Fire and Nature. It's weakest against Energy and Water. On defense, it's weakest against Energy and strongest against Water, Ice, Oil, Storm and Wind.