Regular 
When cast on a person or object, this spell allows the subject to interact with incorporeal spirits as if they were solid. A weapon with this spell on it can harm an insubstantial spirit.

Duration: 1 minute. 
Cost: 4 to cast. 2 to maintain. 
Time to cast: 2 seconds. 
Prerequisite: Solidify.

Item 
This spell cannot be enchanted into an item, but see Ghost Weapon.