The Grey Valley

North of the Umbra Hills lies a wide valley of ill omen and dark history, named for the forest of petrified trees that fills the majority of the valley's forest floor. During the Scattered War, Trist Drassig obsessed over the possibility of losing and pledged his service to the Demon Prince of Indulgence in exchange for power to smite his foes.
The bargain accepted, the demon prince sent his forces to this valley to aid Trist in the Battle of the Umbra Hills, but ultimately both fell to the incredible power of the rebelling forces. The release of terrible energies exploded across the battlefield. Now left cursed and lifeless, the valley remains a whispered warning against dealing with demons—and a dangerous locus of darker entities that are drawn to the ruined place.

Graz'tchar, the Decadent End

Weapon (greatsword), artifact (requires attunement)
This blade appears to be a beautiful cruciform sword of shining silver, inlaid with sparkling rubies. You gain a +3 bonus to attack and damage rolls made with this magic weapon, which has the following properties.

Corrosive Submission

When you hit a creature that has an Intelligence score of 4 or higher with an attack using this sword, the target takes an additional 3d6 acid damage and must make a DC 17 Charisma saving throw or be charmed by you for up to 1 hour. If you attack the creature again while it is charmed in this way, the acid damage increases to 10d6 and the charmed condition ends.If the target succeeds on its saving throw or the charm ends for it, it can't be charmed again in this way for 24 hours.

Hidden Nature

The acid damage dealt by this greatsword appears to be radiant damage. A true seeing spell or similar magic revelas that this sword is actually a rusted, pitted blade dripping with acid.

Sentience

Graz'tchar is a sentient neutral evil weapon with an Intelligence of 14, a Wisdom of 12, and a Charisma of 18. It has hearing and darkvision out to a range of 120 feet.
The sword can speak, read, and understand Common, and can communicate with its wielder telepathically. Those who hold it hear the wise voice of a sorrowful king beckoning the user to sieze their destiny.

Personality

Graz'tchar slowly attempts to sway its wielder into sowing chaos in Exandria, telling lies and spreading malign truths about great leaders, and claiming that the members of the Tal'Dorei Council are corrupt and must be overthrown. The voice of this blade is actually the Demon Prince of Indulgence, speaking from his Abyssal prison.
If the sword's attuned wielder disobeys the urges of the weapon for an extended period of time, Graz'tchar can attempt to control he wielder, who must succeed on a DC 17 Charisma saving throw or become charmed by the sword for 24 hours. While the wielder is charmed in this way, the sword can compel the wielder to take an action of the sword's choice once per hour, though the wielder believes this action is taken of their own free will. If the chosen action leads to the harm of someone the wielder considers a trusted friend or ally, the charmed condition immediately ends. On a successful saving throw or if the charmed condition ends for the wielder, they are immune to this property of the sword for 24 hours.

Type

Valley

Location under

Cliffkeep Mountains