Boogaloo

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

Boogaloo Re-generation. When the boogaloo is reduced to zero hit points by any means other than cold damage, its body divides into 5 inert clumps of flesh. On the boogaloo's next turn, these clumps transform into 5 miniature boogaloos. The miniature boogaloos each have 20% of the original boogaloo's maximum hit points and are otherwise identical to the original boogaloo; each acts on the boogaloo's turn. When a miniature boogaloo is reduced to zero hit points, it vanishes, and the remaining miniature boogaloos instantly increase in size, each gaining 20% of the original boogaloo's maximum hit points. When only one boogaloo remains, it is the original boogaloo.

Multiattack. The boogaloo makes three attacks: two with its claws and one with its bite.

Claw. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 8 (1d8 + 4) slashing damage.

Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 13 (2d8 + 4) piercing damage plus 17 (5d6) poison damage, and the target must succeed on a DC 14 Constitution saving throw or become poisoned for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.