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) Paralyzing Breath or (B) Spellcasting to cast (level 2 version).
Rend
Melee Attack+17, reach 15 ft. 19 () 🗡️ Slashing damage plus 9 () ❄️ Cold damage.
Cold Breath Recharge 5
CON SaveDC 24, each creature in a 90-foot Cone [Area Of Effect]. Failure: 67 () ❄️ Cold damage. Success: Half damage.
Paralyzing Breath
CON SaveDC 24, each creature in a 90-foot Cone [Area Of Effect]. 1 The target has the condition until the end of its next turn, when it repeats the save. 2 The target has the condition, and 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
Chill
The dragon uses Spellcasting to cast . The dragon can't take this action again until the start of its next turn.
Cold Gale
DEX SaveDC 23, each creature in a 60-foot-long, 10-foot-wide Line [Area Of Effect]. Failure: 14 () ❄️ Cold damage, and the target is pushed up to 30 feet straight away from the dragon. Success: Half damage only. Success or Failure: The dragon can't take this action again until the start of its next turn.
Pounce
The dragon moves up to half its Speed, and it makes one Rend attack.