Priority vs moves with variable types
Fun fact, Gale Wings cannot give priority to variable type moves, such as Natural Gift, Hidden Power or Judgement, even if they are flying type. This is still true in gen 9. Allegedly this happens because these moves were not flying type when selected.
This got me thinking if the opposite applies, it does. In this scenario, the Brave Bird still has priority, even if it's no longer a flying type move
But I'm still confused why it works like this, especially nowadays where dynamic speed/priority is a thing. My only guess is that it follows the same logic as the encore prankster interaction.