Merlon the mime magus

How about a champ that is like a mime who can create walls. Not too large or wide but about a doors length and width. The walls can be hopped over and passed through with appropriate abilities, but are primarily used to block champs and spells. The walls (or mirrors if you prefer) have a health bar so they can be destroyed and you can only have a fixed amount up at one time.

I imagine the kit would look something like this.

Q mirror wall. Sets up a visible wall that blocks champion passage and spells for a limited time. Walls have health and can be destroyed by spells and auto attacks. Wall health scales and only 5 can be placed at a time. Once a fifth wall is placed another wall cannot be placed until a previous walls timer has expired or if another wall is destroyed.

W reflection shift. Merlon can teleport between walls set up on the battlefield. He can teleport twice before cooldown for quick hit and run combo. By selecting a nearby wall he. Can merge with it and select any wall for transport. After having selected the specific wall he may choose which side of the wall he wishes to appear from. While inside a wall merlon causes base wall health to decrease, and if a wall is destroyed while Merlon is inside he receives damage penalties.

E geometric ray. Merlon charges a lined skill shot that can be charged to fire at maximum damage. Upon selecting e you will begin to charge the shot. And aura will appear around Merlon warning the enemy that his attack is being charged. Once e is selected again a ray will fire in the direction the mouse pointer is currently. The ray skill shot can reflect off of walls for greater range and added damage. Once fired at a wall the ray will reflect based on where the initial shot was fired from. Example: If fired directly in the center of a wall the beam will refract diagonally left and right 90 degrees. Refractions can be used to reach other walls, thus a chain of attack is created from the walls and the skillshot. The more refractions you make the more damage will be dealt.

R mirror overload. All walls are invincible for 5 seconds. The damage will be increased when using walls for refractions from E during this time. All walls will change in color or shine bright to signify that the ultimate has been used. Also once activated all other cooldowns reset.

Passive psychic symbiosis. A percentage of merlons bonus ap is added as bonus health for his walls. (This will allow his walls some extra durability so that they are not immediately destroyed during team fights.)

Merlons play style will revolve in setting up walls in strategic positions so he can teleport between them to engage and escape, hide behind them for cover and then charge his e to reflect the shot off placed walls for an effective burst attack. His problems would revolve around using the walls efficiently as you cannot create more walls once the maximum has been placed. Also his only effective attack relies on getting refractions by reflecting e off walls.