Decamillennial

The decamillennial is the ten-thousanth year anniversary of the signing of the Guildpact on the plane of Ravnica. On the day of the decamillenial the selesnyan leaders, the Chorus of the Conclave, would perform the convocation, a ritual through which the entire plane will become blessed, and their sins forgiven.

However, Szadek attacked the ceremony and with the aid of his lupul, and Savra he almost destroyed the Guildpact, until Agrus Kos and other characters managed to arrest him.