At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus.
1White: Put a 1/1 white Pegasus creature token with flying onto the battlefield.
"Do not go there, do not go / unless you rise on wings, unless you walk on hooves."
-"Song to the Sun," Femeref song
Time Spiral "Timeshifted" (Special) Time Spiral "Timeshifted"