Young Gold Dragon
Large dragon, lawful good
Armor Class 18 (natural armor)
Hit Points 178 (17d10 + 85)
Speed 40 ft., fly 80 ft., swim 40 ft., climb 20 ft.
str
23 (+6)
dex
14 (+2)
con
21 (+5)
int
16 (+3)
wis
13 (+1)
cha
20 (+5)
Saving Throws Dex +6, Wis +5
Skills Insight +5, Perception +9, Persuasion +9, Stealth +6
Damage Immunities fire
Senses blindsight 30 ft., darkvision 120 ft., passive Perception 19
Languages Common, Draconic
Challenge 10 (5,900 XP)
Amphibious. The dragon can breathe air and water.
Actions
Fire Breath. Dexterity Saving Throw: DC 17, each creature in a 30-foot Cone. Failure: 55 (10d10) Fire damage. Success: Half damage.
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. 17 (2d10 + 6) Slashing 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 Test 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.