Enchant Item

You are able to enchant a weapon or piece of armor with an attack bonus type or attack resistance, like fire, slashing, acid, etc. This can be applied to something that doesn't have the option for the bonus, like a hammer with piercing or an arrow with slashing. 

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, you can grant enchantments for others weapons besides your own, and the bonuses are doubled.