Venusaur and Roserade have STAB Sludge Bomb, as do Vileplume, Victreebel and Morobareru, Meganium ties with it, Ludicolo can use Ice Beam, Breloom has Spore and strong Focus Punches (not to mention Poison Heal and Substitues of his own), Tropius has STAB Flying type moves, Leafeon will KO it...