Young Silver Dragon

Large, dragon, lawful good

CR 9AC 18HP 168 (16d10)

Speed fly 80 ft, walk 40 ft

str: 23; (+6)
dex: 10; (+0)
con: 21; (+5)
int: 14; (+2)
wis: 11; (+0)
cha: 19; (+4)

Saving Throws CHA +8, CON +9, DEX +4, WIS +4

Skills arcana +6, history +6, stealth +4, perception +8

Damage Immunities cold

Senses blindsight: 30 ft., darkvision: 120 ft., passive_perception: 18

Languages Common, Draconic

Actions

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage.

Claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Breath Weapons. The dragon uses one of the following breath weapons. Cold Breath. The dragon exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 17 Constitution saving throw, taking 54 (12d8) cold damage on a failed save, or half as much damage on a successful one. Paralyzing Breath. The dragon exhales paralyzing gas in a 30-foot cone. Each creature in that area must succeed on a DC 17 Constitution saving throw or be paralyzed for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.