Oil/Shadow typing

Oil/Shadow 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 56.2% of their battles. They do best in Ethereal, at 65.1%. 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. With Shadow as its primary typing, it attacks with Shadow. Its attack is strongest against Agriculture, Light and Metal. It's weakest against Faith, Fire and Shadow. On defense, it's weakest against Fire, Faith and Light and strongest against Agriculture, Ice, Metal, Nature, Shadow, Water and Wind.