User blog comment:KaiserLos24/How to: Counter the Donger 101/@comment-24256010-20140509141737

I would have to say there are a good few. Heimer is countered hard by high mobility and/or dong-blocking him with AOE's. Brand and Malzahar have very good range, Brand can also use his Q on a turret, then E to set the nearby Heimer ablaze. Not only that, but his ult can bounce to turrets, so if you do it right... bye-bye Heimer. Assassin-wise, Kha'zix (stealth and jump, as well as his w having a heal), Zed (If skilled can out-juke him with a well placed shadow or 2) and Yasuo (Dash can go through turrets, Wind-Wall can block shots and missiles (and maybe grenade? I don't remember)). Those are the only ones I can think of that can counter him HARD.