Dragon's Breath (3.5e Spell)

The subject of this spell becomes able to use a breath weapon identical to that of a dragon, chosen from one of the following elements: acid, cold, electricity, or fire. Regardless of which damage type is chosen, the breath weapon is a supernatural ability that deals 1d6 points of damage per level (or point of Challenge Rating, if applicable) of the caster or the target, whichever is higher, with a successful Reflex save halving the damage dealt. The breath weapon is usable as a standard action and may take the shape of either a line or a cone, each of which is proportional to the subject's size (see the table below). Each time the breath weapon is used in this fashion, the subject must wait 1 round before they can use it again.

Alternatively, this spell may be used to empower a weapon the target of the spell is using, allowing them to add the breath weapon damage to a successful melee attack made with the designated weapon. If the weapon is capable of making multiple attacks in a single round, breath weapon damage is only added to the first successful attack, after which the breath weapon must take a round of downtime as normal.