Young Gold Dragon

Large Dragon (Metallic), Lawful Good

AC 18 Initiative +6 (16) HP 178 (17d10 + 85) Speed 40 ft., Fly 80 ft., Swim 40 ft.
STR 23 +6 +6
DEX 14 +2 +6
CON 21 +5 +5
INT 16 +3 +3
WIS 13 +1 +5
CHA 20 +5 +5
Skills
Insight +5, Perception +9, Persuasion +9, Stealth +6
Immunities
Fire
Senses
Blindsight 30 ft., Darkvision 120 ft.; Passive Perception 19
Languages
Common, Draconic
CR
10 (XP 5,900; PB +4)

Traits

Amphibious. The dragon can breathe air and water.

Actions

Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of Weakening Breath.

Rend. Melee Attack Roll: +10, reach 10 ft. Hit: 17 (2d10 + 6) Slashing damage.

Fire Breath (Recharge 5–6). Dexterity Saving Throw: DC 17, each creature in a 30-foot Cone. Failure: 55 (10d10) Fire damage. Success: Half damage.

Weakening Breath. Strength Saving Throw: DC 17, each creature that isn't currently affected by this breath in a 30-foot Cone. Failure: The target has Disadvantage on Strength-based D20 Tests and subtracts 3 (1d6) from its damage rolls. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically.