Diminish breath weapon

Diminish breath weapon was a spell that was used against dragons.

Effects
This spell targeted the breath weapon of the targeted dragon. The spell significantly reduced the damage normally inflicted by said breath weapon.

Components
This spell only required a verbal component. The spell's strength could be increased if, during casting, the ashes of a valuable object were sprinkled by the caster. The object had to have been either damaged or destroyed by the breath weapon of the targeted dragon and had to have a value of over 100 gp.