Blood Ignition

Once this spell is cast, the user may ignite any of their own blood as long as they are touching it, lighting all their blood they are touching that is outside of their body to catch fire. It deals (2d8-2) fire damage every turn of the spell caster's in which it is in effect. It cannot be smothered or extinguished, but disappears after one more attack once the caster stops spending their actions on the spell. Once the spell has begun, the user can break contact with their blood and it will stay lit as long as they want.