Young Boreal Dragon
Large Dragon, chaotic neutral
Armor Class 18 (natural armor)
Hit Points 142 (15d10+60)
Speed fly +80, swim +30, walk +40
Challenge 8
Saving Throws cha +5, con +7, dex +3, wis +5
Skills stealth +3, athletics +8, perception +8
Damage Resistances cold
Damage Immunities fire
Senses blindsight 30 ft., darkvision 120 ft., passive Perception 18
Languages Draconic, Giant
Actions
Multiattack. The dragon makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage.
Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage.
Cinder Breath (Recharge 5-6). The dragon exhales a 30-foot cone of superheated air filled with white-hot embers. Each creature in that area must make a DC 15 Dexterity saving throw, taking 33 (6d10) fire damage on a failed save, or half as much damage on a successful one.
Source: Tome of Beasts 2 · OGL/Open