New Champion mechanic.

Just thinking out of the blue, what if there was an ability that uses terrain. For example, if a skillshot hit the wall, it would bounce off, pass through any targets, and if it hit another wall, bounce again up to a set maximum (skillshot would dissipate at the end of its range). Thinking of it, it would work really well for a jungler but also transfer to making really cool plays depending on how it was designed.