"Sithmas Battle" is a short LEGO film, considered non-canon, that was released online on November 5, 2020.
Poe Dameron pilots his X-wing fighter with R2-D2 as his astromech companion, enjoying festive music as he flies past a planet. Suddenly, a TIE/dg starfighter exits hyperspace and collides with Dameron's starfighter. The pilot of the TIE fighter then faces Dameron and starts blinking the lights on their TIE Dagger, while also playing holiday tunes and dancing along.
Dameron responds by playing a different holiday song and repeatedly opening and closing his S-foils to simulate his X-wing dancing. The TIE pilot then introduces a Star Destroyer, which carries even more Sith TIEs. These TIE fighters create a snowflake shape around the original TIE, flashing their lights in unison. Dameron also calls in reinforcements: T-70 X-wing starfighters. The two groups of fighters then fly in formations resembling holiday symbols like a wrapped present, a candy cane, a wreath, and more, until the X-wings form a stocking and kick the TIEs away.