Who do you think are the most annoying heroes to lane against? It can't be a single hero, it has to be a dual lane. They don't have to be the perfect combo to get first blood or easy kills, just two heroes that when together in lane against you make you want to punch your screen. I would put money down on Kunka and Warlock. Fatal Bonds and Tidebringer make me want to pull my hair out. Venomancer and Viper would be mildly irritating as well.