Armor Class 17 (natural armor)
Hit Points 32 (5d8 + 10)
Speed 30 ft., Fly 60 ft.
STR
17 (+3)
DEX
10 (+0)
CON
15 (+2)
INT
12 (+1)
WIS
11 (+0)
CHA
15 (+2)
Skills Perception +4, Stealth +2
Damage Resistances Lightning
Senses Darkvision 60 ft., Passive Perception 14
Languages --
Challenge 2 (450 XP)
Proficiency Bonus +2
Traits

Amphibious. The dragon can breathe air and water.

Actions

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

Lightning Breath. Melee  Weapon Attack The dragon exhales lightning in a 40 Each creature in that line must make a DC 12 Dexterity saving throw, taking 16 (3d10); lightning damage on a failed save, or half as much damage on a successful one.

Just_Gaza