Pretty sure Brand is my new favorite
Poor Dead KhaZix - YouTube
I've been playing him a lot of late and I feel like I dominate my lane every game I get him. I suspect it's because nobody really seems to play Brand and therefor doesn't know how to play against him.
That poor Kha'zix really wanted to kill me. Ended 5/0/4 that game.
I'm further enjoying the increase in Leblanc's I've been noticing. Brand vs Leblanc is the most glaring example of a hard counter I've seen yet. Her passive literally kills her.