@Riot: What makes you decide whether an ability will have total or bonus AD scaling?
The only true rules of thumb I've seen with abilities that have these scalings is that Total AD will always be present on abilities that trigger on-hit effects, and Bonus AD tends to be present on energy or non-material physical attacks, such as Jayce's ranged Q and Ezreal's ult. Also, total ad usually appears to be present on abilities that heavily involve the champion's primary weapon, but this isn't a universal.
As somebody who spends a lot of time making champion concepts, I'm interested what sort of rules go into this kind of thing :)
