Ice Walk
The dragon can move across and climb icy surfaces without needing to make an ability check. Additionally, Difficult Terrain composed of ice or snow doesn't cost it extra movement.
Ancient White Dragon
Gargantuan Dragon · Chaotic Evil
Armor Class20
Hit Points333 (18d20 + 144)
SpeedWalk 40 ft., Burrow 40 ft., Fly 80 ft., Swim 40 ft.
Challenge20
STR26
DEX10
CON26
INT10
WIS13
CHA18
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.
Rend
Melee Attack +14, reach 15 ft. 17 () 🗡️ Slashing damage plus 7 () ❄️ Cold damage.
Cold Breath Recharge 5
CON Save DC 22, each creature in a 90-foot Cone [Area Of Effect].
Failure: 63 () ❄️ Cold damage.
Success: Half damage.
Failure: 63 () ❄️ Cold damage.
Success: Half damage.
Legendary Actions
Freezing Burst
CON Save DC 20, each creature in a 30-foot-radius Sphere [Area Of Effect] centered on a point the dragon can see within 120 feet.
Failure: 14 () ❄️ Cold damage, and the target's Speed is 0 until the end of the target's next turn.
Success or Failure: The dragon can't take this action again until the start of its next turn.
Failure: 14 () ❄️ Cold damage, and the target's Speed is 0 until the end of the target's next turn.
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.