Quick Links
Acquiring materials and various resources inHades 2is important for unlocking incantations and making Melinoe stronger. While most of the early-game items are used to unlock tools, weapons, and soil plots, other resources such as Nightmare are used to upgrade Melinoe’s arsenal.
Nightmare is the hardest material to find in the game. you’re able to venture into the Underworld or the Surface without using this item once. However, upgrading Melinoe’s weapons with Nightmare materials will let you beat Eris and Chronos more easily. This guide explains how to get this resource and what to do with it.

How To Get Nightmares
To acquire Nightmare resources, you mustbeat bosses and complete Testament challenges from The Oath of the Unseen and Testamentsplatform.
Testaments must be enabled firstfrom the platform by doing the following actions:

If, for instance, you find thePolyphemus the CyclopsTestament challenge cardwith one fear level above it, andMelinoe’s Moonstone Axepositioned below it, you need toactivate at least one modifierandequip Melinoe with the specified weaponto trigger the particular Testament. Your reward for defeating this boss will be a Nightmare item.
Buying Nightmare
After you have unlocked the Oath of the Unseen and Testaments,Charon and the Wretched Broker will start selling Nightmareitems at avery high cost.
You need at least1,000 bones to trade one Nightmareitem from theWretched Broker. As for Charon, certain Vows increase the cost of items Charon sells, so we can not put a finger on the fixed price. However,Charon mostly sells a Nightmareitem for about1,300 Gold.

How Does The Oath Of The Unseen And Testaments Work?
The Oath of the Unseen and Testamentshelp advanced players push their luckmore byincreasing the risksand stakes in each run. Here is the list of key terms and what these mean when you use modifiers in the game:
TheVows are modifiersthat players canactivate and make future runs difficult.
Testaments
TheTestaments are the challengesthat requirebeating bosses to receive a Nightmareresource material as a reward. Each Testament requires you to meet two conditions for activation: increasing fear level and equipping the required weapon.
Fear Level
Thepurple skull on a boss cardindicates thefear level required to activatea certain Testament. Activating morevows increases the value of fear levels.
Weapon Requirements
Eachboss card specifies a Melinoe’s weaponthat must be equipped to activate a Testament.
For a more detailed explanation of the mechanics, you can check ourThe Oath of the Unseen and Testamentsguide. It lists all modifiers, effects, and other useful information about the subject.
Where To Use Nightmares
Touse the Nightmare resources, you must first unlock theAspects of Night and Darkness incantation. This brings up a weapon variation of Nocturnal Arms and Aspect Awakenings (upgrade paths) for each of them in the training room.
Afterunlocking a weapon variation, such as Aspect of Momus, you musthave one Nightmare itemto unlockrank twoof this weapon in the game.