Druid fire

User can create a green flame, bright 15ft and dim 30ft. You can hurl flame that does 1d10 damage. At 5th level 2d10. 11th 3d10. 17th 4d10.

Or when the user it at level 4. You can make a green fire envelope you and up to 3 other creatures within 15ft. Flames are harmless to those cast upon, and at start of turn everyone gains 2d6 temporary hit points. And the fire deals 2d4 damage to attacker. This fire lasts 1 minute.