Devil's Sight. Magical darkness doesn't impede the devil's darkvision.
Magic Resistance. The devil has advantage on saving throws against spells and other magical effects.
Multiattack. The devil makes two melee attacks: one with its claws and one with its tail. It can use Hurl Flame in place of any melee attack.
Claw. Melee Weapon Attack: +3 to hit, reach 10 ft., one target. Hit: 4 (1d6+1) piercing damage.
Tail Whip. Melee Weapon Attack: +3 to hit, reach 10 ft., one target. Hit: 3 (1d4 + 1) piercing damage. The target must make a DC 11 saving throw, if failed will get pushed to the ground.
Hurl Flame. Ranged Spell Attack: +4 to hit, range 150 ft., one target. Hit: 5 (1d6+2) fire damage. If the target is a flammable object that isn't being worn or carried, it also catches fire.
Description
This abomination was the result of poorly planned experimenting on one of the mystical gems found in the Mines of Mysteria, the Water Amethyst. Where this creature came from cannot be determined, only that it didn't wish to be summoned.
Loot: 1 platinum ingot, shredded cardinal clothes, water amethyst