Right, I think it's time I join the party:
Vileplume
Typing: Grass / Poison -----> Grass / Poison
Abilities: Chlorophyll / Effect Spore -----> Pollinate (whomever named this ability, outstanding naming, I'm changing what it does a bit though sorrynotsorry)
BST: 75/80/85/110/90/50 (490)-----> 75/90/115/135/125/50
New Moves: Clear Smog, Gastro Acid
RIGHT, so, first things first, Pollinate, this new ability here, raises the accuracy of power moves by 30%, so Sleep Powder and Stun Spore now have accuracies of 97.5, effectively turning them into Spore and Thunder Wave, respectively.
I'm the one who originally suggested the Grass/Dark typing, and I'm sorry. I take it back, Grass/Poison is much more fitting for (VILE)(PLUME)
just name it Poisonflower why don't you, Game Freak. Now, the stats I believe to have balanced perfectly; so it won't be just another Mega Venusaur or Amoonguss (which is the real difficulty in all of this), I've given it higher Special Attack and some special moves.
Gastro Acid is an INCREDIBLE move; it supresses the target's ability, and is essentially Mold Breaker turned into a move. It even works on Steel Types! Excellent, excellent move.
Clear Smog is also superb, and can act as a Panic Button of sorts if the Sleep Clause is already active. Another great move for this sentient Rafflesia.
I'm pretty happy with how this one turned out, and do believe it is one of the more solid Vileplume submissions (not to toot my own horn or anything, it just is).
Snotjoch's Golduck and clapyourhands' Venomoth are about perfect though, vote for those
or i'll fucking cut you