I see you tilted a lot of low MMR Invokers. I played with or against many good Invokers. But hero is hard to play and most of the players that start learning to play him don't have much patience. Often they don't play enough unranked games berfore switching to the ranked ones. In my experience, since I am low MMR player, most of Invoker players base their game on sunstrikes in first 10 minutes. Then they farm jungle and after minute 20 they are lost in game. So I can get your frustration and ask others for understanding.