Improved Splash

One thing that always bothered me with Splash is how it targets two creatures if you hit a center one, but only one creature if you hit a corner one. I think it devalues the buff a lot, and make a lot of people overlook it.

So I thought that maybe, when you hit a corner creature, could Splash target the creature above (or below) it, as well as the center one? This way Splash would do consistent damage.