Typing: Poison/Ground or Poison/Dark
+30 HP
+20 Attack
+30 Defense
+20 Special Defense
+30 Speed
It's movepool and abilities are good, it just needs to bulk and speed so that it can actually set up. Getting STAB on Earthquake or Sucker Punch would also be a big help.
>>48511141Butterfree isn't OU.
>>48511250That would be a huge buff, but would it really make it OU? It still has to choose between getting shut down by hazards and getting shut down by sand/hail, and it still gets OHKO'D by toxic.