Skulls of Mayhem (SOM) is an exclusive collection of 2,333 Skulls from a neighboring land to Toxic Skulls Club. This collection is only available to mint by burning a hazardous canister that was accrued through Chambers. This group of Skulls has been transformed by exposure to the hazardous canisters. SOM is part of the Concord Labs ecosystem. Toxic Skulls Club | N.T.P. Canisters