You gain a diversified skillset, giving more intensity and consistency to your imagination, from training against mental images, to visualizing a mind projection of yourself countering the attacks of your opponent before the fight even started.
This power also grants one the ability to develop their own fighting style or styles from observing the movements of animals, like the masters of old, along with copying the moves of martial artists you have watched or faced in combat.
You are still limited by your own physical capabilities, so unless you have a superhuman physique don't expect to be able to perform superhuman feats with this skill.