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System Reference Document 5.2.1
damage, and the target has the Poisoned condition until 
the start of the devil’s next turn. While Poisoned, the 
target can’t regain Hit Points.
Brass Dragons
Brass Dragon Wyrmling
Medium Dragon (Metallic), Chaotic Good
AC 15  Initiative +2 (12)
HP 22 (4d8 + 4)
Speed 30 ft., Burrow 15 ft., Fly 60 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 15 +2 +2 Dex 10 +0 +2 Con 13 +1 +1
Int 10 +0 +0 WIS 11 +0 +2 Cha 13 +1 +1
Skills Perception +4, Stealth +2
Immunities Fire
Senses Blindsight 10 ft., Darkvision 60 ft.; 
Passive Perception 14
Languages Draconic
CR 1 (XP 200; PB +2)
Actions
Rend. Melee Attack Roll: +4, reach 5 ft. Hit: 7 (1d10 
+ 2) Slashing damage.
Fire Breath (Recharge 5–6). Dexterity Saving Throw: 
DC 11, each creature in a 20-foot-long, 5-foot-
wide Line. Failure: 14 (4d6) Fire damage. Success: 
Half damage.
Sleep Breath. Constitution Saving Throw: DC 11, each 
creature in a 15-foot Cone. Failure: The target has the 
Incapacitated condition until the end of its next turn, 
at which point it repeats the save. Second Failure: The 
target has the Unconscious condition for 1 minute. This 
effect ends for the target if it takes damage or a creature 
within 5 feet of it takes an action to wake it.
Young Brass Dragon
Large Dragon (Metallic), Chaotic Good
AC 17  Initiative +3 (13)
HP 110 (13d10 + 39)
Speed 40 ft., Burrow 20 ft., Fly 80 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 19 +4 +4 Dex 10 +0 +3 Con 17 +3 +3
Int 12 +1 +1 WIS 11 +0 +3 Cha 15 +2 +2
Skills Perception +6, Persuasion +5, Stealth +3
Immunities Fire
Senses Blindsight 30 ft., Darkvision 120 ft.; 
Passive Perception 16
Languages Common, Draconic
CR 6 (XP 2,300; PB +3)
Actions
Multiattack. The dragon makes three Rend attacks. It 
can replace two attacks with a use of Sleep Breath.
Rend. Melee Attack Roll: +7 , reach 10 ft. Hit: 15 (2d10 
+ 4) Slashing damage.
Fire Breath (Recharge 5–6). Dexterity Saving Throw: 
DC 14, each creature in a 40-foot-long, 5-foot-
wide Line. Failure: 38 (11d6) Fire damage. Success: 
Half damage.
Sleep Breath. Constitution Saving Throw: DC 14, each 
creature in a 30-foot Cone. Failure: The target has the 
Incapacitated condition until the end of its next turn, 
at which point it repeats the save. Second Failure: The 
target has the Unconscious condition for 1 minute. This 
effect ends for the target if it takes damage or a creature 
within 5 feet of it takes an action to wake it.
Adult Brass Dragon
Huge Dragon (Metallic), Chaotic Good
AC 18  Initiative +10 (20)
HP 172 (15d12 + 75)
Speed 40 ft., Burrow 30 ft., Fly 80 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 23 +6 +6 Dex 10 +0 +5 Con 21 +5 +5
Int 14 +2 +2 WIS 13 +1 +6 Cha 17 +3 +3
Skills History +7 , Perception +11, Persuasion +8, Stealth +5
Immunities Fire
Senses Blindsight 60 ft., Darkvision 120 ft.; 
Passive Perception 21
Languages Common, Draconic
CR 13 (XP 10,000, or 11,500 in lair; PB +5)
Traits
Legendary Resistance (3/Day, or 4/Day in Lair). If 
the dragon fails a saving throw, it can choose to suc-
ceed instead.
Actions
Multiattack. The dragon makes three Rend attacks. It 
can replace one attack with a use of (A) Sleep Breath or 
(B) Spellcasting to cast Scorching Ray.
Rend. Melee Attack Roll: +11, reach 10 ft. Hit: 17 (2d10 
+ 6) Slashing damage plus 4 (1d8) Fire damage.
Fire Breath (Recharge 5–6). Dexterity Saving Throw: 
DC 18, each creature in a 60-foot-long, 5-foot-
wide Line. Failure: 45 (10d8) Fire damage. Success: 
Half damage.
Sleep Breath. Constitution Saving Throw: DC 18, each 
creature in a 60-foot Cone. Failure: The target has the 
Incapacitated condition until the end of its next turn, at 
which point it repeats the save. Second Failure: The tar-
get has the Unconscious condition for 10 minutes. This 
effect ends for the target if it takes damage or a creature 
within 5 feet of it takes an action to wake it.