It's incredibly annoying to play against. The only counter is Red Death. You can't nerf this thing either; it's DoT is what makes it an exotic, and nerfing its crit damage would do little to help its situation. We need more COUNTERS to Thorn, not nerfs. I used to use it all the time, and now I don't. It does take skill to use, btw; landing those two oh so very important head shots is a lot more challenging than it sounds. Even if you can't land crits, it takes about four body shots in addition to the DoT to kill someone. Overused, not OP