Teferi's Moat, Sandwurm Convergence, and Painter's Servant

Prerequisites

• Teferi's Moat on the battlefield
• Sandwurm Convergence on the battlefield
• Painter's Servant on the battlefield

Steps

1. Because Sandwurm Convergence prevents creatures with flying from attacking you, and Teferi's Moat prevents creatures without flying from attacking you (as they're all the named color due to Painter's Servant), no creatures can attack you

Results

• You can't be attacked
• Lock