Can Someone Post A Video Of Ball Trans Actually Hitting A Mob, I wanna See How Strong It Is

Depends on how strong your gear is.
Just like spin you need good gloves + good instrument. Why? Gloves give you more p.attack which increases the power of the spin that is being combined with the power of your instrument/grandchef sub.

Note - fire spin & ball transform can crit.

Could you post a video of it in action against mob