Teferi's Moat prevents creatures of the chosen color without flying from attacking you.
Because Painter's Servant makes all creatures the chosen color, and Archetype of Imaginaton causes all creatures your opponents control to lose flying, no creatures can attack you.

Lock

You can't be attacked

Teferi's Moat

Painter's Servant

Archetype of Imagination

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.

Sandwurm Convergence

Teferi's Moat prevents creatures of the chosen color without flying from attacking you.
Because Painter's Servant makes all creatures the chosen color, and Mystic Decree causes all creatures to lose flying, no creatures can attack you.

Mystic Decree

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 Darkest Hour), no creatures can attack you.

Combos with "Teferi's Moat"