Make Minion Dematerializer actually useful for waveclear

I thought the whole point of this rune is investing in this slot and sacrificing damage for better waveclear, however, most champions that can't really clear with one spell (Lux, new Leblanc) still can't one shot range minions even if using this rune. Meanwhile, MD is mostly used on champions that already have decent clear, just to shove even more or delete the cacnon minion and go roam. Therefore I suggest you up the %dmg you deal to minions maybe by 5% and 2% after the first use, and if you use it on a cannon minion, you deal 1/2 or 3/4 of its healthbar.