Anyway, the moves it might be able to use without moving: Ancient Power, Rock Slide, Smack Down, Hyper Beam, Sandstorm, Stealth Rock, Screech, Hyper Beam.
It might also be able to use its propulsion to slam into her, but we'd need answer about AP/Striking Strength vs Lifting Strength here.
I would also question that she can turn Pupitar in her hands 180 degrees fast enough:
1. Pupitar begins charging an attack
2. Vi notices it charging.
3. Vi somehow turns it around 180 degrees or such in her giant gauntlets before Pupitar unleashes its attack in Speed Equalized?