The Last Supper, at Least for Today! is a Legends of Idleon quest: 3 rewards. Hope you read the previous dialogue!

The Last Supper, at Least for Today! | Idleon Toolbox

The_Last_Supper,_at_Least_for_Today!

Increases Total Damage to all monsters by 20%. Golden foods are never consumed.

Increases your Total Defence by 30%. Golden foods are never consumed

Auto-Used when your health goes below 30%. Restores 2000 HP. Has a 10 second Cooldown.