I think that Vileplume should be considered for a tier because even though it might be viewed as outclassed by Ammonguss defensively, it is actually quite good offensively as it's STAB is only resisted by poison and steel which are uncommon for the most part. Vileplume also has more bulk than other grass/poison sweepers which allows it to compensate for its slow speed(though it still has to be careful of fire types) Vileplumes STAB is also good for breaking past regenator cores being super effective against all of them except ammonguss and outspeeding them all. I think these traits make Vileplume a pokemon to consider putting on the list as it is surprisingly effective at being a bulky sweeper that can break past annoying regenator cores. I agree with this. I'm finding Tauros to be so good right now as it is fast and 1HKO's glass cannon offensive threats and outspeeding them. Zen headbutt brings a great surprise factor against fighting types and easily 1HKO's them. All in all a really good pokemon that needs more usage.