You spend your time in martial arts learning a technique THEN you practice how to apply that technique against a resisting opponent.

Any wrestler can pull off an ankle pick.

It's getting into the set-up that takes the training, and knowing how and when to force your way through.

Any boxer can jab.

The jab is used for so many different purposes (retreating, opening, obscuring vision) that it's not just the movement that is practiced, but application.

Any cloud giant can flurry.

Only through practice can he learn WHEN to flurry his opponent (and I don't mean in ticks, but in the phantasy combat that's happening) to make it most effective.