monster

Ancient Spirit Dragon

CR 22

Gargantuan Dragon, Neutral

Reveal Stat Block

Armor Class

Hit Points

420 (24d20 + 168)

Speed

40 ft., fly 80 ft., burrow 30 ft.

str

dex

con

int

wis

cha

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 Thunderwave|XPHB (level 2 version).

Rend.m 15, reach 15 ft. ({@damage 2d10 + 8) Slashing damage plus 9 (2d8) Necrotic damage.

Ruinous Breath 5.con 22, each creature in a 90-foot Cone [Area of Effect]|XPHB|Cone. 72 ( Half damage.

Time-Warping Breath.wis 22, each creature that isn't currently affected by this breath in a 90-foot Cone [Area of Effect]|XPHB|Cone. The target's {@variantrule Speed|XPHB is halved, it can't take Reactions, and it can take either an action or a Bonus Action|XPHB 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.The creature can take 3 legendary actions...

Pounce.The dragon moves up to half its Speed|XPHB, and it makes one Rend attack.

Shattering Wave.The dragon uses Spellcasting to cast Thunderwave|XPHB (level 2 version).

Unearth Ruins.The dragon magically raises broken, ancient ruins in a 20-foot-radius, 60-foot-high Cylinder [Area of Effect]|XPHB|Cylinder centered on a point it can see within 120 feet. Ground in the Cylinder [Area of Effect]|XPHB|Cylinder becomes Difficult Terrain|XPHB. Each creature in the Cylinder [Area of Effect]|XPHB|Cylinder when it appears is subjected to the following effect. str 22. 13 ( The dragon can't take this action again until the start of its next turn.