large Dragon
Armor Class 17 (natural armor)
Hit Points 126
Speed fly +80, swim +40, walk +40, burrow +20
Challenge 6
Saving Throws cha +4, con +7, dex +3, int -2, str +4, wis +4
Damage Immunities cold
Senses darkvision 120 ft., keensense 30 ft.
Languages Common,Draconic
Ice Walk. The dragon can move across and climb icy surfaces without needing to make an ability check. In addition, difficult terrain composed of ice or snow doesn’t cost it extra movement.
Numbing Chill. When the white dragon hasn’t unleashed its Cold Breath, the cold builds up within it and ripples outward from it. While the dragon’s Cold Breath is available, it emits a numbing chill, and each creature that starts its turn within 10 feet of the dragon must succeed on a DC 15 CON save or its speed is reduced by 10 feet.
Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. _Melee Weapon Attack:_ +7 to hit, reach 10 ft., one target. _Hit:_ 15 (2d10+4) piercing damage plus 4 (1d8) cold damage.
Claw. _Melee Weapon Attack:_ +7 to hit, reach 5 ft., one target. _Hit:_ 11 (2d6+4) slashing damage.
Cold Breath (Recharge 5-6). The dragon exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 15 CON save, taking 31 (7d8) cold damage on a failed save, or half as much damage on a successful one.
Source: Black Flag SRD · OGL/Open