18 (natural armor)
172 (15d12+75)
20 ft., climb 20 ft.
Dex +5, Con +10, Wis +6, Cha +8
Perception +11
acid, lightning
blindsight 120ft. (blind beyond this radius)
Common, Draconic
20
If the dragon fails a saving throw, it can choose to succeed instead.
The dragon can use its Amorphous Presence. It then makes three attacks: one with its bite and two with its claws.
Melee Weapon Attack: +11 to hit, reach 10ft., one target. Hit: 11 (2d4+6 ) piercing damage plus 7 (2d6) acid damage.
Melee Weapon Attack: +11 to hit, reach 5ft., one target. Hit: 8 (1d4+6) slashing damage plus 5 (2d4) acid damage.
Melee Weapon Attack: +11 to hit, reach 15ft., one target. Hit: 15 (2d8+6) bludgeoning damage.
Each creature, of the dragon's choice, that is within 5 feet of the dragon must succeed on a DC 18 Dexterity saving throw. On a successful save, nothing happens. On a failed save, the creature takes 14 (4d6) acid damage and is engulfed within the dragons form. Engulfed creatures cannot breathe, are grappled and restrained, and take 28 (8d6) acid damage at the start of each of the dragons turns. An engulfed creature can try to escape by taking an action to make a DC 18 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the dragon.
The dragon exhales gelatinous ooze in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 18 Dexterity saving throw, taking 21 (6d6) acid damage on a failed save, or half as much on a successful save. Any nonmagical weapons or armor that is worn by a creature that fails the save begin to corrode, taking a permanent and cumulative -1 penalty to either damage or AC dependant on the item.
The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.
The dragon makes a Wisdom (Perception) check.
The dragon makes a tail attack.
The dragon loses its defined shape and spreads out as a pool of acidic ooze. Each creature within 60ft of the dragons current position must make a DC 18 Dexterity saving throw or take 14 (4d6) acid damage and have their movement speed halved whilst in this effect. In this form, the dragon can no longer attack and has its speed reduced to 0. At the beginning of its next turn, the dragon reforms in the space it occupied prior to activating this action. Any creatures under the effects of the dragons Amorphous Presence are freed.