I wish we'd have a rune that does bonus damage on minions

You know how old masteries used to have one special for farming, especially the "savagery", I mean dematerializer is good too, but that is not really a farming help, you can use it only 3 times and almost not at all until somewhere between end of lane phase. Why can't we get just something that deal bonus damage on minions and monsters and that's it. Like your spells and attack deals 5% more damage on minions on monsters, or even better, your attacks on minions below 25% hp will deal 10% more damage.

Or just keep his acutal passive, but made it always active on all minions no matter for what you use dematerializer, and you still instakill 3 minions with it's active. That will be much more helpful for champions that have problems last hitting than just clicking 3 times on a cannon. Right now dematerializer is just a push rune, not a farming one, and obv that was the intent, but what about those champions with really slow attack animations and low base attack that struggle to last hit, and yes doran shield maybe be an option, but 80% of times is not, because if you take it you will have no mana and no damage, acutally the damage you gain from doran blade is probably better than doran shiled passive for farming purpose.