Chanko Gone Off (CGO) was airdropped to OP Sumos. Each Sumo received 3 CGO. You will be able to mint Mutant Sumos by burning CGO (1 CGO burned allows the minting of 1 Mutant Sumo). You can also get a discount in SHOKUDO (the whitelist market for the OP Sumo Club) by staking Mutant Sumos.
