[quote=@Masaki Haruna]
Posted. Of course it's an illusion. Anyone with a brain can just pass by it and it's harmless. This is a good ol' magician trick for an Esper pulling jump scares.

Welcome to Prank 101.
[/quote]

I have issues with Aizen's power copying.

You describe it as working by altering one's Personal Reality. That's impossible. One's powers are sourced from the Personal Reality, and through the AIM diffusion fields produced by his body, his Personal Reality acts to change the world. And the very reason why an Esper has access to their Personal Reality is because their brains have been damaged and rewired.

You can't just casually change powers. It simply doesn't work in the setting. And even if you did have a power that copied another power, the moment you rewrote your Personal Reality, you would no longer have the ability to copy powers. If you did, that would fall under Dual Skill, and thus end up breaking your brain apart.

Drop the power copying, just stick with the illusions.