Avatar of Juiblex

Amorphous. The possessed ooze knight can move through a space as narrow as 1 inch wide without Squeezing.

Corrosive Form. A creature that touches the Avatar of Juiblex or hits it with a melee attack while within 5 feet of it takes 4 (1d8) acid damage. Any nonmagical weapon made of metal or wood that hits the possessed ooze knight corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed.

Regeneration. The Avatar of Juiblex regains 10 hp at the start of its turn if it has at least 1hp

Spider Climb. The Avatar of Juiblex can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Spellcasting. The Avatar of Juiblex's spellcasting is based on Wisdom (spell save DC 15, +7 to hit with spell attacks). Spells prepared: Cantrip Acid Splash (2d6)

Multiattack. The oozing one makes two attacks.

Acid Lash. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 11 (2d6+4) acid damage

Swallow. As an action, the Ooze makes melee attack against a Large or Smaller creature that is grappled. If the attack hits, the target is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the Avatar and it takes 11 (3d6) acid damage at the start of each of the its turns. If the Avatar takes 10 damage or more on a single turn, the Avatar must succeed on a Constitution saving throw equal to the damage taken or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the Avatar. If the Avatar dies, a swallowed creature is no longer restrained by it and can escape from the slime by using half of its movement, exiting prone.

When the avatar of Juiblex reaches half health or less, it splits into two new Avatars of Juiblex if they would have at least 10 hit point. Their maximum hit points are equal to the half of the remainder. New Avatars of Juiblex are one size smaller than the original. Roll a new initiative for newly spawned Avatars of Juiblex.