[Bonus chappy thanks to Dragonman009 <3 (4 6)]< p>
Velocity allowed one to instantly change their velocity's direction. Although you couldn't speed up or slow down, you could choose the direction at which. If used with enough precision and confidence, it might even be possible to make it look like you had come to a sudden stop, but the consumption of mental fortitude, Universal Force and Dream Force would be astronomical.
Momentum was the evolution of Velocity. Instantly controlling momentum allowed you to not only choose direction at will, but also the speed. The flexibility was much greater and the results far more devastating.
Waveform allowed you to phase in and out of reality, similar to Blackstar's Shadow World, but this time firmly under Leonel's control. He could even focus on just a single part of his body if he was confident enough, minimizing the consumption.
And finally, there was Fold.