Edit: The jinn sidesteps, pivots, and stretches her entire body to lunge with her spear in a counterattack.
Edit 2: The flames of the creature's body sputter angrily where the spear pierces it. The flame creature spreads like a carpet on the hillside, moving rapidly down in the direction of the party.
What actions would everyone like to take at this point?
Rolls
Fire creature attack vs jinn - (1d20+6)
(1) + 6 = 7
Damage, if applicable - (2d6+3)
(31) + 3 = 7
Jinn attack vs fire creature - (1d20+10)
(4) + 10 = 14
Damage, if applicable - (2d6+6)
(23) + 6 = 11