Young Blue Dragon

Large dragon, lawful evil

STR	DEX	CON	INT	WIS	CHA
21 (+5)	10 (+0)	19 (+4)	14 (+2)	13 (+1)	17 (+3)

AC	HP	CR	Prof.
18	152 (16d10+64)	9	+4

Speed 40 ft., burrow 40 ft., fly 80 ft.
Saving throws DEX +4, CON +8, WIS +5, CHA +7
Skills Perception +9, Stealth +4
Damage immunities lightning
Senses blindsight 30 ft., darkvision 120 ft., passive perception 19
Languages Common, Draconic

Actions

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

Bite Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage plus 5 (1d10) lightning damage.

Claw Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage.

Lightning Breath The dragon exhales lightning in an 60-foot line that is 5 feet wide. Each creature in that line must make a DC 16 Dexterity saving throw, taking 55 (10d10) lightning damage on a failed save, or half as much damage on a successful one.