Sea Dragon Wyrmling
Medium Dragon, neutral evil
Armor Class 17 (natural armor)
Hit Points 52 (8d8+16)
Speed fly +60, swim +40, walk +30
Challenge 2
Saving Throws cha +4, con +4, dex +2, wis +2
Skills stealth +2, perception +4
Damage Immunities cold
Senses blindsight 10 ft. darkvision 60 ft., passive Perception 14
Languages Common, Draconic, Primordial
Actions
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing damage plus 3 (1d6) cold damage.
Tidal Breath (Recharge 5-6). The dragon exhales a crushing wave of frigid seawater in a 15-foot cone. Each creature in that area must make a DC 12 Dexterity saving throw. On a failure, the target takes 11 (2d10) bludgeoning damage and 11 (2d10) cold damage, and is pushed 15 feet away from the dragon and knocked prone. On a successful save the creature takes half as much damage and isn't pushed or knocked prone.
Source: Tome of Beasts · OGL/Open