
During their investigations into this incursion, the adventuring party called The S.H.I.T.s, later known as Vox Machina, investigated General Krieg's house and found a teleportation circle leading to Brimscythe's lair in the Cliffkeep Mountains. As General Krieg, Brimscythe thwarted an assassination attempt against Sovereign Uriel Tal'Dorei II in early 810 PD, which was carried out as part of a demonic incursion. The young blue dragon Brimscythe had infiltrated the Tal'Dorei Council, taking the guise of a human named General Kreig and the position of Master of Law. Both Brimscythe and Thordak wanted Emon for themselves, but Brimscythe was killed before the claim could become an issue. After Draconia and the Tal'Dorei government were dealt with, the continent of Tal'Dorei would be divided up among the members. Of greater concern to the Conclave was the immediate threat of Draconia, as the Dragonborn civilization had been keeping close tabs on many (if not all) of the Conclave's members. The plan was for the five dragons to work together to wipe out the controlling society of Tal'Dorei. Raishan proposed the idea of the Chroma Conclave - an alliance of powerful chromatic dragons including Brimscythe, Umbrasyl, and Vorugal. Thordak claimed to know of a cure, which he promised to share, but if only Raishan would release him and help conquer the city of Emon.

During Thordak's imprisonment in the Elemental Plane of Fire, he was approached by Raishan, an ancient green dragon who was cursed with a horrific disease that was slowly disintegrating her.

It was Raishan and Thordak (though mostly Raishan) who brokered the idea of the Chroma Conclave.
