This is how Inflight's using her ability to inflate herself and trainers like a balloon - Expansation.

She activates her Expansation when its orb on her forehead glows, and can make herself inflates, and only her trainer too.

She rarely activates with her own will and bonded with Soria's will.

Even Inflight using that ability, Soria don't need to inflate when it comes to battle on the ground level, but on the sky level, she's battle while she was inflated.

Speaking battles, Inflight's ability can change her form from "Normal" to "Inflated" mode that increasing her defense when she uses a move or react to taking damage.

She possesses the ability to move around, including flying forward and backwards, turning around, and even rotating.

There are no time limits as she stays inflated.

I hope you like it.