Oath of the Unseen
Useful Pages:
Nocturnal Arms, their Aspects & Upgrades
All the Boons
Hades II Guides
The Oath of the Unseen is unlocked only after beating Chronos and is the focal point of late-game runs. It is located in The Crossroads training ground, between the exits towards the Surface/Underworld. Using it, you can take on Vows, special challenges which increase difficulty.
Rewards[edit | edit source]
On the left side of the UI, each weapon will show a specific boss and the required Fear level to complete that Testament. Doing so will reward 1 
Nightmare.
Each Vow grants a certain amount of 
Fear. When you have enough for the currently equipped weapon's Testament, the boss portrait will light up. If the boss portrait is still grey, you will not receive any rewards.
Testaments do not follow a linear progression, but instead occur at 1, 2, 4, 8, 12, 16, 20, and 24 Fear, with two of these being skipped for each weapon - leading to a total of 6 Testaments per weapon.
It is possible to complete multiple Testaments in the same run by raising Fear above the initial requirements, and beating the appropriate bosses in the appropriate order. For example, the 
Witch's Staff requires beating Hecate at 1 Fear, Scylla at 2 Fear, Cerberus at 12 Fear, and Chronos at 20 Fear. You could do a single 20 Fear run that beats all four bosses, and thus receive 4 Nightmare. Conversely, if you had not completed any Testaments with the Argent Skull, a 4 Fear run of the Underworld would only reward 1 Nightmare, as the "Hecate, 4 Fear" Testament is only unlocked after completing the "Cerberus, 1 Fear" Testament.
Statues are awarded by 
Schelemeus for beating 8, 16, and 32 Fear. You must complete the appropriate Fear on both the Surface and Underworld (with any weapon) to unlock the statues, which appear near him in the Training Grounds.
Currently, a maximum of 55 Fear is available by activating all Vows. There are 30 Testaments that can be completed.
Vows[edit | edit source]
| Icon | Name | Fear
|
Description |
|---|---|---|---|
|
Blood | 1/3/5 | Enemies deal 20/60/100% more damage. |
|
Dominance | 1/2/3 | Enemies have 10/20/30% more health. |
|
Rebuke | 1/2 | Enemies start with 1/2  Shields.
|
|
Fury | 3/6 | Enemies move and attack 20/40% faster. |
|
Suffering | 2/4 | In each Encounter, the first hit you take deals 100/300% bonus damage.
|
|
Commotion | 1/2/3 | Encounters have 20/40/60% more enemies. |
|
Haunting | 1/2 | Most slain foes have a 25/50% chance to become a Revenant.
|
|
Wandering | 1/3 | Most foes have a 10/25% chance to be from the next Region.
|
|
Scars | 1/2/4 | Any  Healing effects are 75/50/0% effective.
|
|
Destitution | 1/2 | All items that cost  Gold are 40/80% more expensive.
|
|
Panic | 1 | You enter each location with 0%  Magick.
|
|
Forsaking | 2 | After choosing a Boon, the 2 you did not choose will no longer appear for the rest of your run.
|
|
Bitterness | 3 | The first 1 Boon that appears in each region turns into a  Red Onion.
|
|
Arrogance | 1/4 | Whenever you choose a Boon, you prime 5/10  Magick for each rarity greater than common.
|
|
Desperation | 1/3/6 | You have 9/7/5 minutes to complete each region (or else...) |
|
Abandon | 5 | Nullify the benefits of 100% of your Arcana Cards. |
Testaments[edit | edit source]
| Fear
|
Witch's Staff
|
Sister Blades
|
Moonstone Axe
|
Umbral Flames
|
Argent Skull
|
|---|---|---|---|---|---|
| 1 |  Hecate
|
 Scylla
|
 Polyphemus
|
 Eris
|
 Cerberus
|
| 2 | Scylla
|
Polyphemus
|
Eris
|
Cerberus
|
(Skipped) |
| 4 | Polyphemus
|
Eris
|
Cerberus
|
(Skipped) | Hecate
|
| 8 | Eris
|
Cerberus
|
(Skipped) | Hecate
|
Scylla
|
| 12 | Cerberus
|
(Skipped) | Hecate
|
Scylla
|
Polyphemus
|
| 16 | (Skipped) | Hecate
|
Scylla
|
Polyphemus
|
Eris
|
| 20 |  Chronos
|
(Skipped) | Chronos
|
(Skipped) | Chronos
|
| 24 | (Skipped) | Chronos
|
(Skipped) | Chronos
|
(Skipped) |