Young Blue Dragon
Large dragon · CR 9 · 5,000 XP
18 AC · 152 HP
Roll the Young Blue Dragon
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Stat block
- Type
- Large dragon, lawful evil
- Armor Class
- 18
- Hit Points
- 152 (16d10 + 64)
- Speed
- 40 ft., burrow 20 ft., fly 80 ft.
- Challenge
- 9 (5,000 XP), proficiency +4
- Immunities
- lightning
- Senses
- darkvision 120 ft., blindsight 30 ft., passive perception 19
- Languages
- Common, Draconic
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 21 | 10 | 19 | 14 | 13 | 17 |
Young Blue 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 (+9) | 90% 16.4 dmg | 80% 14.6 dmg | 75% 13.8 dmg | 70% 12.9 dmg | 60% 11.1 dmg | 50% 9.4 dmg |
| Full turn (3 attacks) | 49.1 dmg | 43.9 dmg | 41.3 dmg | 38.6 dmg | 33.4 dmg | 28.1 dmg |
Young Blue Dragon hit points
The stat block uses the average, 152. Rolled, 16d10 + 64 lands anywhere from 80 to 224.
| Hit points | Chance |
|---|---|
| 116 or more | >99% |
| 152 or more | 52% |
| 188 or more | <1% |
| 210 or more | <1% |
Actions
Multiattack. The dragon makes three Rend attacks.
Rend. Melee Attack Roll: +9, reach 10 ft. Hit: 12 () Slashing damage plus 5 () Lightning damage.
Lightning Breath. Dexterity Saving Throw: DC 16, each creature in a 60-foot-long, 5-footwide Line. Failure: 55 () Lightning damage. Success: Half damage.
Other CR 9 monsters
Bone Devil 
Clay Golem 
Cloud Giant 
Fire Giant 
Glabrezu 
Treant 
Young Silver Dragon
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.