The sinister black dragon occasionally makes a close “alliance” with a like-minded humanoid, and that can lead to a black dragon bloodline. A character with this bloodline shares his ancestor’s cunning and malevolence, and may have a sunken, almost skeletal appearance to his face.
| Character Level | Minor | Intermediate | Major |
|---|---|---|---|
| 1st | — | — | +2 on Athletics checks |
| 2nd | — | +2 on Athletics checks | Alertness |
| 3rd | — | — | Strength +1 |
| 4th | +2 on Athletics checks | Alertness | Resistance to acid 5 (Ex) |
| 5th | — | — | Black dragon affinity +2 |
| 6th | — | Strength +1 | +1 to natural armor |
| 7th | — | — | +2 on Stealth checks |
| 8th | Alertness | Resistance to acid 5 (Ex) | Resistance to acid 10 (Ex) |
| 9th | — | — | Constitution +1 |
| 10th | — | Black dragon affinity +2 | Water breathing (Ex) |
| 11th | — | — | Black dragon affinity +4 |
| 12th | Strength +1 | +1 to natural armor | +1 to natural armor |
| 13th | — | — | +2 to Deception checks |
| 14th | — | +2 on Stealth checks | Power Attack |
| 15th | — | — | Charisma +1 |
| 16th | Resistance to acid 5 (Ex) | Resistance to acid 10 (Ex) | Breath weapon (Ex) |
| 17th | — | — | Black dragon affinity +6 |
| 18th | — | Constitution +1 | +1 to natural armor |
| 19th | — | — | +2 on Insight checks |
| 20th | Black dragon affinity +2 | Water breathing (Ex) | Immunity to acid (Ex) |