Umbrums possess Princess Cadance and Princess Celestia

This is how Umbrums possess Princess Cadance and Princess Celestia goes in

[Princess Cadance is strapped to an upright board]

Princess Cadance: [groaning]

[There is a noise]

[She tries to break free]

[She looks around]

Princess Cadance: This can't be good.

[She sees an Umbrum]

Princess Cadance: What are you doing?

[The Umbrum approaches]

[It goes into her]

Princess Cadance: Get out of me!

[Cadance's magic is sucked out and Cadance slips into unconsciousness as her head goes down]

[The Umbrum drains her magic]

[Princess Cadance's magic gets put in a container and on a table with many other female ponies' magic, Celestia's magic, Twilight's magic, and her friends' magic]

[Princess Cadance starts to groan as her body moves and twitches as the Umbrum enters it. The Umbrum fully possesses her and Cadance's eyes open and become like King Sombra's eyes]

[Another Umbrum approaches Princess Celestia and puts her head up and opens her mouth and becomes a stream of mist that flows into her mouth. Celestia groans as her body moves and twitches as the Umbrum mist flows into her mouth and goes down her throat and then the mist seeps into Celestia and her eyes open and become like King Sombra's eyes]

[The Umbrums bite through the energy binds holding the Umbrum possessed Princess Cadance and Princess Celestia and free them and the possessed Cadance and Celestia walk forward and Princess Cadance and Princess Celestia look at the Umbrums and speak with a more enchanting version of their voices]

Umbrum possessed Princess Cadance: This is our moment. [chuckling darkly] I can feel it.

Umbrum possessed Princess Celestia: Me too. [smiles evilly] Let's go.

[They head off, the Umbrums following them]