Armor Class 16 (natural armor)
Hit Points 93 (11d10 + 33)
Speed 40 ft., fly 80 ft., swim 40 ft., burrow 20 ft.
Saving Throws DEX +4, CON +6, WIS +5, CHA +6
Skills Perception +5, Persuasion +6, Stealth +7
Damage Resistances poison, psychic
Condition Immunities charmed, frightened, poisoned
Senses blindsight 30 ft., darkvision 150 ft., passive Perception 15
Languages Common, Draconic, Undercommon
Challenge 5
Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 9 (1d10 + 4) piercing damage plus 3 (1d6) poison damage.
Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) slashing damage.
Nightmare Breath (Recharge 5–6). The dragon exhales a cloud of spores in a 30-foot cone. Each creature in that area must make a DC 14 Wisdom saving throw. On a failed save, the creature takes 22 (4d10) psychic damage, and it is frightened of the dragon for 1 minute. On a successful save, the creature takes half as much damage with no additional effects. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Fizban's Treasury of Dragons, p. 175