based on D&D 5th Edition
Fire Elemental
Huge  Elemental , Neutral

Armor Class 13  (natural)
Hit Points 168  (16d12+64)
Speed 50 ft. , swim 25 ft.

10  (0) 17  (+3) 18  (+4) 6  (-2) 10  (0) 7  (-2)
Damage Resistances Bludgeoning, Piercing, Slashing
Damage Immunities Fire, Poison
Condition Immunities Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained, Unconscious
Senses darkvision, passive Perception 10
Languages Ignan
Challenge 5  (0 XP)
Illumination. Lights an area 30 ft around it. .
Water Susceptibility. Every move action into water causes 1 cold damage. .
Fire Form. Not affected by squeezing. Creatures hitting with melee weapons take 5 fire damage. Elemental can enter hostile creatures space. Creatures sharing space take 5 fire damage when first entering and at start of turns..
Multiattack. Make two touch attacks
Touch. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6+3) fire damage. 5 (1d10) fire damage at start of turn