Ancyker

When using a Neutral property Cannon Ball, the damage is Pseudo-elemental. It takes the elemental damage modifier from the equipped weapon (as with normal attacks) and then applies the elemental damage modifier for a Neutral property attack to the entire damage. This means it will always be reduced by Ghost property. This is the same as pre-patch behavior.
When using an elemental Cannon Ball, it takes the elemental damage modifier from the equpped Cannon Ball, and then applies the modifier again to the entire damage.