Slime Dragon

Huge Ooze, Unaligned

Armor Class 6

6 Hit Points 195 (17d12 + 85)

195 (17d12 + 85) Speed 20 ft

STR DEX CON Int WIS CHA 21 (+5) 5 (-3) 20 (+5) 2 (-5) 8 (-1) 1 (-5)

Damage Resistances Acid, Bludgeoning, Slashing, and Piercing from nonmagical weapons

Acid, Bludgeoning, Slashing, and Piercing from nonmagical weapons Damage Immunities None (see footnote)

None (see footnote) Condition Immunities Blinded, Charmed, Deafened, Exhaustion, Frightened, Prone

Blinded, Charmed, Deafened, Exhaustion, Frightened, Prone Senses Blindsight 120 ft (Blind beyond this radius), passive Perception 9

Blindsight 120 ft (Blind beyond this radius), passive Perception 9 Challenge 15

Ooze Dragon. The Slime Dragon takes up most of it's space. Creature's can enter it's space, but they are subjected to the Slime Dragon's Engulf feature. Medium or larger creatures make the save with disadvantage.

Creatures inside the cube can be seen but have total cover.

A creature within 5 feet of the cube can take an action to pull a creature or object out of the cube. Doing so requires a successful DC 15 Strength check, and the creature making the attempt takes 14 (4d6) acid damage.

The cube can hold only two Large creature or up to six Medium or smaller creatures inside it at a time.

Corrosive Form. A creature that touches the Slime Dragon or hits it with a melee attack while within 5 feet of it takes 17(2d10 + 6) acid damage. Any nonmagical weapon made of metal or wood that hits the Slime Dragon 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. Nonmagical ammunition made of metal or wood that hits the Slime Dragon is destroyed after dealing damage. The Slime Dragon can eat through 2-inch-thick, nonmagical wood or metal in 1 round. Engulfed creatures are not dealt damage from Corrosive Form

Actions Multiattack. The Slime Dragon makes 3 attacks; 2 with it's claws and one with it's bite. Slime Claw. Melee: +12 to hit, 15 feet, one target. Hit 8 (1d10 + 5) slashing damage, and 8 (1d10 + 3) acid damage. Spread. The Slime Dragon spreads itself. When it does so, it's height is decreased to 5 feet and it's size increases to gargantuan. Creatures in it's space are not subjected to it's Engulf feature, instead they take 13 (3d6 + 3) acid damage when they start their turn in it's space or the first time they enter the Slime Dragon's space on their turn. The Slime Dragon's space is considered difficult terrain while spread.

While Spread, the Slime Dragon can only Engulf one medium creature or two small creatures on it's turn. The Slime Dragon can only use it's action to engulf a creature in it's space. It's movement speed is reduced by 15 feet while spread. Using it's action, the Slime Dragon can reform itself, returning to normal, and freeing any creatures it has engulfed while spread. Bite. Melee: +10 to hit, 10 feet, one target. Hit 8 (1d10 + 5) bludgeoning damage and the target is subjected to the Slime Dragon's Engulf feature. Engulf. The Slime Dragon moves up to its speed. While doing so, it can enter Large or smaller creatures' spaces. Whenever the Slime Dragon enters a creature's space, the creature must make a DC 15 Dexterity saving throw.

On a successful save, the creature can choose to be pushed 5 feet back or to the side of the cube. A creature that chooses not to be pushed suffers the consequences of a failed saving throw.

On a failed save, the Slime Dragon enters the creature's space, and the creature takes 10 (3d6) acid damage and is engulfed. The engulfed creature can't breathe, is restrained, and takes 21 (6d6) acid damage at the start of each of the Slime Dragon's turns. When the Slime Dragon moves, the engulfed creature moves with it. An engulfed creature can try to escape by taking an action to make a DC 12 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the Slime Dragon.