WildFire

Spell Lists: Druid, Ranger, Sorcerer
4th-level conjuration
Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a candleflame or larger open flame)
Duration: Concentration, up to 10 minutes
A spirit of wildfire appears in an unoccupied space within range. The spirit is a Medium elemental, appearing as a graceful humanoid or beast made of dancing flames. Its AC is equal to your Spell Save DC, and if forced to make any saving throw, its bonus equals your proficiency bonus + your spellcasting modifier. It is immune to fire damage and resistant to all other types except cold.

An aura of oppressive heat surrounds the spirit out to a range of 20 feet. Non-elemental creatures which end their turn in the area cannot benefit from resistance to fire damage until they leave the area, unless they are immune to fire damage, in which case they take damage as if only resistant. Flammable objects in the area for one round ignite.

As a bonus action, you can ask the spirit to fly up to 40 feet and optionally make a melee spell attack against a creature within 5 feet of it, dealing 4d6 fire damage on a hit. You can also use your reaction to make the same attack as an opportunity attack when a creature leaves the spirit's reach. The spirit disappears after making this attack a number of times equal to 1 + your spellcasting modifier (minimum of twice), and it also loses one use for every 6 damage it takes.