Chancellor of the Forge

Populate. At the beginning of its turn, Chancellor of the Forge will spew from its massive mouth an exact copy of one of its allies that is within 60 ft. of it. If there are no allies, it will instead spew 2 copies of the creature Blackcleave Goblin.

Legendary Resistance (3/day).  If the Chancellor fails a saving throw, it can choose to succeed instead.

Multiattack. Chancellor of the Forge makes three attacks:  one bite and two with its claws.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., 1 target. Hit: 21(4d6 + 7) piercing damage. After a successful hit, the target must make a CON saving throw with a DC of 10. Nothing happens on a successful save. On a failed save, the target becomes diseased with ichor. A diseased target gains 1 level of exhaustion after every long rest. After a long rest, the target may roll a CON saving throw with a DC of 15. On a success, the target is no longer diseased. On a fail, the target remains diseased. If the target is unable to overcome the ichor disease before it dies, it will revive in an hour's time after death as a Contagious Nim.

Claw. Melee Weapon Attack: +5 to hit, range 10 ft., 1 target. Hit: 16 (2d8 + 7) slashing damage.

Populate. Chancellor of the Forge will spew from its massive mouth an exact copy of one of its allies that is within 60 ft. of it. If there are no allies, it will instead spew 2 copies of the creature Blackcleave Goblin.

Launching Escape. If a creature moves within 5ft. of Chancellor of the Forge, the Chancellor may launch itself up to 40ft. away within invoking an attack of opportunity. Any creature within 5ft. of the landing area must make a dexterity saving throw with a DC of 15 or be knocked prone and take 1d6 (3) bludgeoning damage. If the Chancellor lands on a creature, they must make a strength saving throw with a DC of 20 or become grappled and take 3d8 (13) bludgeoning damage.