Armor Class
21
Ancient Spirit Dragon
Gargantuan Dragon · Neutral
Hit Points
420 (24d20 + 168)
Speed
Walk 40 ft., Burrow 30 ft., Fly 80 ft.
CR
22
Traits
Legendary Resistance (4/Day, or 5/Day in Lair)
If the dragon fails a saving throw, it can choose to succeed instead.
Actions
Multiattack
The dragon makes three Rend attacks. It can replace one attack with a use of (A) Time-Warping Breath or (B) Spellcasting to cast (level 2 version).
Rend
Melee Attack +15, reach 15 ft. 19 () Slashing damage plus 9 () Necrotic damage.
Slashing
NecroticRuinous Breath Recharge 5
CON Save DC 22, each creature in a 90-foot Cone [Area Of Effect].
Failure: 72 () Necrotic damage.
Success: Half damage.
Failure: 72 () Necrotic damage.
Success: Half damage.
Time-Warping Breath
WIS Save DC 22, each creature that isn't currently affected by this breath in a 90-foot Cone [Area Of Effect].
Failure: The target's Speed is halved, it can't take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically.
Failure: The target's Speed is halved, it can't take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically.
Legendary Actions
Pounce
The dragon moves up to half its Speed, and it makes one Rend attack.
Shattering Wave
The dragon uses Spellcasting to cast (level 2 version).
Unearth Ruins
The dragon magically raises broken, ancient ruins in a 20-foot-radius, 60-foot-high Cylinder [Area Of Effect] centered on a point it can see within 120 feet. Ground in the Cylinder [Area Of Effect] becomes Difficult Terrain. Each creature in the Cylinder [Area Of Effect] when it appears is subjected to the following effect. STR Save DC 22.
Failure: 13 () Bludgeoning damage, and the target has the condition.
Success or Failure: The dragon can't take this action again until the start of its next turn.
Failure: 13 () Bludgeoning damage, and the target has the condition.
BludgeoningSuccess or Failure: The dragon can't take this action again until the start of its next turn.