Corrupted Flame Elemental

Fire Form. The elemental can move through a space as narrow as 1 inch wide without squeezing. A creature that touches the elemental or hits it with a melee attack while within 5 ft. of it takes 1d6 fire damage. In addition, the elemental can enter a hostile creature's space and stop there. The first time it enters a creature's space on a turn, that creature takes 1d6 fire damage and catches fire; until someone takes an action to douse the fire, the creature takes 1d6 fire damage at the start of each of its turns.

Death Burst. When the Corrupted Flame Elemental dies, it explodes in a burst of flames. Each creature within 5 feet of it takes 1d6 fire damage. Flammable objects that aren't being worn or carried in that area are ignited.

Flaming Body. Any creature that touches the Corrupted Flame Elemental takes 1d6 fire damage. If a creature is grabbing the Corrupted Flame Elemental, that creature takes the damage at the start of each of its turns. Additionally, the Corrupted Flame Elemental sheds bright light in a 10-foot radius and dim light for an additional 10 feet.

Water Susceptibility. For every 5 ft. the elemental moves in water, or for every gallon of water splashed on it, it takes 1 cold damage.

Touch. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1d6 Fire damage + 1d6 Necrotic damage. If the target is a creature or a flammable object, it ignites. Until a creature takes an action to douse the fire, the target takes 1d6 fire damage at the end of each of its turns.

Fan the Flames. The Corrupted Flame Elemental causes the flames on an ignited creature or object within 10 feet of it to flare up. The target immediately takes periodic damage from ignition, and the periodic damage taken by the target increases by 1d6.