Warpox (Bubonic Demon)

Magic Resistance. The Warpox has advantage on saving throws against spells and other magical effects.

Infectious Carrier. If the Warpox reaches 0 hit points, it explodes in a cloud of infectious disease. Each creature that isn't a demon within 10 feet of it must make a DC 15 Constitution saving throw or be afflicted by a random disease from the Dungeon Master's Guide.

Multiattack. The Warpox uses Pox Cloud if it can. It then makes three attacks: one with its bubonic bite and two with its carrion claws.

Bubonic Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 32 (5d10 + 5) piercing damage. The creature must also make a DC 15 Constitution saving throw or have it's constitution be reduced by 1. If the creature's constitution becomes 0 in this way, the creature dies. The creature's constitution is returned to normal with a greater restoration spell or a long rest.

Carrion Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 15 (3d6 + 5) slashing damage. The creature must also make a DC 15 Constitution saving throw or take an additional 10 (2d8 + 2) necrotic damage, if the target is a creature and dies from the additional damage, it rises as a rutterkin 2d4 rounds later.

Pox Cloud (recharge 5-6). The Warpox exudes a toxic cloud in a 60 foot circle centered on itself. Any creature that isn't a demon that starts it's turn in the circle must make a DC 15 Constitution saving throw or take 30 (3d10 + 15) poison damage or half as much on a success and they are poisoned and blinded while in the circle.