Alternate S6E2 ending.
There are a few reasons Sunburst isn't a grand mage. Lacking power is one, mistiming another, and poor planning is a third. Sunburst had been on bad times since his time at Celestia's School for Gifted Unicorns. Always with advice with no way to help, he became recluse in a new home in the Crystal Empire.
Then a mare he hadn't seen since colthood knocks on his door.

Story inspired by and art from Vinicius040598