Leo had several ideas on how to advance his mastery of [Mirror World] beyond the Intermediate grade, but he wasn't certain if any of them would succeed.
The initial spark of the idea began to take root in his mind during his practice with [Shadow Bind].
The technique of manipulating shadows was quite similar to controlling illusions, as both shared a fundamental underlying principle.
Hence, Leo believed that with some trial and error, he could perhaps give his illusionary doppelgangers a real physical form, turning them into actual physical clones that he could control with his mind.
If successful, it could add a whole another level of dimensionality to his fighting style and could perhaps help him surpass even the genius of his master, who was yet to reach this stage.