So far the proven method of beating Axelsen is the Momota method.
In order to excel in the Momota method, your basic game has to be perfect.
Momota did not have a powerful smash, but his match temperament was flawless. This, coupled with his fitness during his prime, allowed him to keep himself in the long rallies and dragged the patience of Axelsen off the course.
To be an attacking player like Axelsen, you need to have that impatience. It's that impatience that provides the impetus for your attacking game. To beat him, you need to break his patience.