Overall Rating: Green. This means that
dragon’s breath is a good spell.
Overall Notes: This spell can be quite effective with the proper setup and in a longer fight. First, you need an animal companion that has an action to use on its turn but no effective attack. The best option for this is a familiar conjured using the Find Familiar spell. Then, you can buff that creature to have a breath weapon that doesn’t use the “attack” action. As long as you maintain your concentration, this allows the familiar to dish out 3d6 damage each turn which is a solid use of a 2nd-level spell slot.