Fiery Body. A creature that touches the bonfire or hits it with a melee attack while within 5 feet of it takes 3 (1d6) fire damage. 

Illumination. The bonfire sheds bright light in a 20-foot radius and dim light in an additional 20 feet.

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

Antimagic Susceptibility. The animated bonfire is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the bonfire must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.

False Appearance. While the animated bonfire remains motionless, it is indistinguishable from a normal bonfire.

Multiattack. The bonfire makes two attacks, one with it's tongue of flame and one with it's ember.

Tongue of Flame. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 8 (2d6 + 1) fire 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 2 (1d4) fire damage at the start of each of its turns.

Ember. Ranged Weapon Attack: +3 to hit, range 15/35 ft., one target. Hit: 5 (1d8 + 1) fire damage.