I heard a lot of people complaining about Graves frming potential after rework, but if you know how to position yourself it is lot way easier then it was with the old Graves(Riot should let you pick between them two xD both gameplays are great (^_^) ) Now, your basics can hit multiple minions, try to use this in your advantage and when you see 2,3 low hp minions grouped go for em with basic. If you see a big wave coming and you get excited("OMG COME TO PAPA" X_X) use your q to farm it after you hit one or 2 basics to make sure you will get the
CS after you use Q.
And please(I saw this 2 games ago) DO NOT USE ULTIMATE TO FARM ^_^ you can save a man by having a heart attack if you listen this advice.

So guys, I hope you will benefit from this guide and as Graves says: ''End of the line''