Thin and wispy flames form a cloak you wear for the duration, shedding dim light for 10 feet. The flames reduce all cold damage you take by 2 for the duration.
In addition, whenever a creature within 5 feet of you hits you with a melee attack, the cloak erupts with flame. The attacker takes 1d4 fire damage. Creatures that end their turn in a grapple with you also take 1d4 fire damage.
Finally, you can use an action to take off the cloak and throw it, creating a 15-foot cone of fire. Creatures in the cone must make Dexterity saving throws or take 2d4 fire damage, or half damage on a successful save. Once thrown, the spell ends.
When you cast this spell using a spell slot of 2nd level or higher, for every slot above 1st, the amount of cold damage reduced increases by 2 and the fire damage of the cone increases by 2d4.
a bit of phosphorous and a small square of wool cloth
Creo Vestium Incendio