Large dragon, lawful good

Armor Class

Hit Points

17d10 + 85 (178)

Speed

walk: 40 ft.

fly: 80 ft.

swim: 40 ft.

STR

23 (+6)

DEX

14 (+2)

CON

21 (+5)

INT

16 (+3)

WIS

13 (+1)

CHA

20 (+5)

Saving Throws Cha +9, Con +9, Dex +6, Wis +5

Senses blindsight 30 ft., darkvision 120 ft., passive Perception 19

Languages Common, Draconic

Challenge 10 (5,900XP)

Damage Immunities

fire

Special Abilities

Amphibious

The dragon can breathe air and water.

Actions

Multiattack

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

Bite

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage.

Claw

Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Breath Weapons (Recharge 5-6)

The dragon uses one of the following breath weapons. Fire Breath. The dragon exhales fire in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 55 (10d10) fire damage on a failed save, or half as much damage on a successful one. Weakening Breath. The dragon exhales gas in a 30-foot cone. Each creature in that area must succeed on a DC 17 Strength saving throw or have disadvantage on Strength-based attack rolls, Strength checks, and Strength saving throws for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.