Blue Dragon Wyrmling

Armor Class 17

Hit Points 52 (8d8 + 16)

Speed 30 ft., burrow 15 ft., fly 60 ft.

Initiative +0

Damage Immunities lightning

Saving Throws DEX +2, CON +4, WIS +2, CHA +4

Skills Perception +4, Stealth +2

Senses blindsight 10 ft., darkvision 60 ft., passive Perception 14

Languages Draconic

Challenge 3 (700 XP)

Source Monster Manual

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. 8 (1d10 + 3) piercing damage plus 3 (1d6) lightning damage.

Lightning Breath (Recharge 5-6). The dragon exhales lightning in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 12 Dexterity saving throw, taking 22 (4d10) lightning damage on a failed save, or half as much damage on a successful one.