Bladebane

Bladebane was a transmutation spell that caused a bladed weapon to temporarily do extra damage to a creature type.

Effect
The caster imparted a deadly quality to a single bladed weapon for a short time. Bladebane conferred the bane ability on the weapon touched, against a creature type of the caster's choice. The enhanced weapon was more likely to hit a creature of the appropriate type, and it dealt a moderate amount of additional damage to creatures of that type.

Material components
A drop of blood and ruby dust worth 500 gp.