Indicator for " Smart Casting ".
One of the disadvantages by using Smart Casting is losing the direction indicator for your spells aka the green line between your champion and your mouse indicator. This can make aiming with smart cast somewhat difficult some times, especially if you haven't had much practice with it. My suggestion is to add a transparent line, which is constantly present, between the champion and the mouse indicator. That way you will know precisely which direction your skillshot is going before you use it. I realize that it might prove to be an unfair advantage for those using smart cast over those whom are not, however let me know what you think!