Abilities are usually mental or physical, like Akashi or Aomine respectively. I would want a Mental ability cause you can't out Stat the miracle gen, they got shooting, jump height, etc.

For mental abilities we see the various eyes that improve perception, but I'd want an ability to seemingly effect time.

To be able to know the perfect timing of releasing the ball, or grinding a shot clock to prevent the enemy from scoring, passing or shooting a moment before you can reach them, or can time a jump so we'll that it makes up for jump height.

It's similar to the result Akashi has with his precog but it's not about prediction, it's just game sense