You cause creatures to take extra damage when you affect them with a spell that has the acid or fire descriptor.
Prerequisite(s): Ability to cast 2nd level spells
- If you cast a spell that deals acid or fire damage, you can cause that spell to continue to burn, dealing more damage the following round. You must increase the level of the spell cost by one, and the spell deals two dice of damage the following round to all affected targets. Saves continue to apply.