Does Valkia's invulnerability let her take off from the middle of combat due to not taking damage for 3 seconds?

Flying lords and monsters normally have to use their mass to pull out of combat to take to the sky again. Valkia is just infantry sized so she is unable to do this effectively, would her invulnerable let her ignore this and take of in the middle of combat? It would massively increase her mobility

Would also let you recreate the trailer