Large Dragon (Metallic), Lawful Good
AC17
Initiative+3 (13)
HP142 (15d10 + 60)
SpeedWalk 40 ft., Fly 80 ft., Swim 40 ft.
STR21
MOD+5
SAVE+5
DEX10
MOD+0
SAVE+3
CON19
MOD+4
SAVE+4
INT14
MOD+2
SAVE+2
WIS13
MOD+1
SAVE+4
CHA17
MOD+3
SAVE+3
SkillsInsight +4, Perception +7, Stealth +3
Damage ImmunitiesLightning
SensesBlindsight 30 ft.; Darkvision 120 ft.; Passive Perception 17
LanguagesCommon, Draconic
CRCR 8 (XP 3,900; PB +3)
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 Repulsion Breath.
Rend. Melee Attack Roll: +8, reach 10 ft. Hit: 16 (2d10 + 5) Slashing damage.
Lightning Breath (Recharge 5–6). Dexterity Saving Throw: DC 15, each creature in a 60-foot-long, 5-foot-wide Line. Failure: 49 (9d10) Lightning damage. Success: Half damage.
Repulsion Breath. Strength Saving Throw: DC 15, each creature in a 30-foot Cone. Failure: The target is pushed up to 40 feet straight away from the dragon and has the Prone condition.
Found on p.58 of MM2025 (Free Rules)