Adult Brass Dragon
Huge dragon · CR 13 · 10,000 XP
18 AC · 172 HP
Roll the Adult Brass Dragon
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Stat block
- Type
- Huge dragon, chaotic good
- Armor Class
- 18
- Hit Points
- 172 (15d12 + 75)
- Speed
- 40 ft., burrow 30 ft., fly 80 ft.
- Challenge
- 13 (10,000 XP), proficiency +5
- Immunities
- fire
- Senses
- darkvision 120 ft., blindsight 60 ft., passive perception 21
- Languages
- Common, Draconic
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 23 | 10 | 21 | 14 | 13 | 17 |
Adult Brass Dragon odds against your Armor Class
Chance to hit, then average damage per attack once misses and critical hits are counted.
| Attack | AC 12 | AC 14 | AC 15 | AC 16 | AC 18 | AC 20 |
|---|---|---|---|---|---|---|
| Rend (+11) | 95% 21.2 dmg | 90% 20.1 dmg | 85% 19.1 dmg | 80% 18 dmg | 70% 15.8 dmg | 60% 13.7 dmg |
| Full turn (3 attacks) | 63.6 dmg | 60.4 dmg | 57.2 dmg | 53.9 dmg | 47.5 dmg | 41 dmg |
Adult Brass Dragon hit points
The stat block uses the average, 172. Rolled, 15d12 + 75 lands anywhere from 90 to 255.
| Hit points | Chance |
|---|---|
| 131 or more | >99% |
| 173 or more | 50% |
| 214 or more | <1% |
| 239 or more | <1% |
Traits
Legendary Resistance. If the dragon fails a saving throw, it can choose to succeed 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 () Slashing damage plus 4 () Fire damage.
Fire Breath. Dexterity Saving Throw: DC 18, each creature in a 60-foot-long, 5-footwide Line. Failure: 45 () 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 target 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.
Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 16):
Legendary actions
Blazing Light. The dragon uses Spellcasting to cast Scorching Ray.
Pounce. The dragon moves up to half its Speed, and it makes one Rend attack.
Scorching Sands. Dexterity Saving Throw: DC 16, one creature the dragon can see within 120 feet. Failure: 27 () Fire damage, and the target’s Speed is halved until the end of its next turn. Failure or Success: The dragon can’t take this action again until the start of its next turn.
Other CR 13 monsters
Adult White Dragon 
Nalfeshnee 
Rakshasa 
Storm Giant 
Vampire, Bat Form 
Vampire, Mist Form 
Vampire, Vampire Form
This page includes material from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License. The averages, odds and tables are ours.