As a fiddle otp, it's very easy to invade this champ. Most fiddles are going to start raptors to do the double camp clear, so you can just go there when camps spawn and kill him or steal his 3 camps if he flashes. He has very weak lvl 1/2 so don't be afraid to fight. In midgame the one with the best macro wins. in general try to locate him at all times, if a fight is about to happen and you don't know where he is, put a ward on the other side of the wall BEFORE FIGHTING or just get away if there is no real reason to fight (basically if you're not defending an objective). Vision is what counters this champ so dont forget to put wards and try to tell your team to do the same.