Ancient Ethereal Dragon

Gargantuan Dragon, Chaotic Evil

Armor Class 20 (natural armor)

20 (natural armor) Hit Points 333(18d20 + 144)

333(18d20 + 144) Speed 40ft., burrow 40ft., fly 80ft., swim 40ft.

STR DEX CON INT WIS CHA 26 (+8) 10 (+0) 26 (+8) 10 (+0) 13 (+1) 14 (+2)

Saving Throws Dex +6, Con +14, Wis +7, Cha +8

Dex +6, Con +14, Wis +7, Cha +8 Skills Perception +13, Stealth + 6

Perception +13, Stealth + 6 Damage Immunities Force

Force Damage Resistance Bludgeoning, Slashing, Piercing from non-magical weapons

Bludgeoning, Slashing, Piercing from non-magical weapons Senses blindsight 60ft., darkvision 120ft., passive Perception 23

blindsight 60ft., darkvision 120ft., passive Perception 23 Languages Common, Draconic

Common, Draconic Challenge 20 (25,000; XP)

Legendary Resistance(3/day). If the Dragon fails a saving throw, it can choose to succeed instead.

Actions

Multiattack The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite Melee Weapon Attack: +14 to hit, reach 15ft., one target. Hit 19 (2d10 + 8) piercing damage plus 9(2d8) force damage.

Claw Melee Weapon Attack: +14 to hit, reach 10ft., one target. Hit 15 (2d6 + 8) slashing damage plus 9(2d8) force damage.

Tail Melee Weapon Attack: +14 to hit, reach 20ft., one target. Hit 17 (2d8 + 8) bludgeoning damage plus 9(2d8) force damage.

Frightful Presence. Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.

Ethereal Breath (Recharge 5-6). The dragon exhales a breath of the ethereal in a 90ft. cone. Each creature in that area must make a DC 22 Strength saving throw, taking 72 (16d8) force damage on a failed save and be pushed 15 ft., or half as much on a save and not be moved.