>>52781067It has very high special attack, Nasty Plot, a great movepool and a powerful signature move
It ability makes it immune to all status moves so unless you have Mold Breaker/Mycelium Might you the only way to deal with it is to overpower it
You can't Rapid Spin or Defog it so you can't removed Hazards when its out
There's probably more but that's just what I've heard. I haven't used or fought one