Sacred Mesa

At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus.\r
{1}{W}: Put a 1/1 white Pegasus creature token with flying onto the battlefield.

At the beginning of your upkeep, sacrifice this enchantment unless you sacrifice a Pegasus.
{1}{W}: Create a 1/1 white Pegasus creature token with flying.

"Do not go there, do not go / unless you rise on wings, unless you walk on hooves."
—"Song to the Sun," Femeref song

During your upkeep, sacrifice a Pegasus or bury Sacred Mesa.
{1}{W} Put a Wild Pegasus token into play. Treat this token as a 1/1 white creature with flying that counts as a Pegasus.

The List

Commander 2014

Time Spiral Timeshifted

At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus.
{1W}: Put a 1/1 white Pegasus creature token with flying into play.