>>38757621To be honest all the grass mons got solid abilities with the exception of Meganium, because Meganium is practically unsalvageable.
Chlorosaur needs no introduction and is arguably the best sun sweeper in the game, or at the very least is one of the best in the game at what it does.
Sceptile can abuse the seeds to have double speed and a defense or sp.def boost. Combine this with Swords Dance, Acrobatics and EQ or Drain Punch plus Leaf Blade and Sceptile can pull off some surprising sweeps. I've gotten it to 6-0 an opponent more than once just because no one ever expects it. If you're using Grassy Terrain, Leaf Blade hits even harder too. Seriously, try it out!
Torterra is already situational in the first place sadly despite his top tier design but he can make use of the ability, which I'm confident was meant to be used on a boosting set like Stockpile.
Serperior is the embodiment of the Law of the Instrument. When all you have is Contrary Leaf Storm, everything can become set up fodder unless they have a x4 resistance. Or they bait you into using all your leaf storms via pressure. Either way he's good.
Chesnaught has an amazing ability that helps him loads with his job as the most common poison special attack to see is easily Sludge Bomb. Blocking it out means blocking out a lot of pokemon that rely on it, such as Venusaur. I learned that from experience, Bulletproof is fantastic for negating one of his main weaknesses. The rest of the immunities don't hurt either.
Finally Long Reach allows Decidueye to ignore a lot of things that activate on contact. For example, it can now trap Ferrothorn or Tank Chomp and hit them without taking Iron Barbs/Rough Skin/Rocky Helmet damage. Also ignores Static, Flame Body, Poison Point, and the special effects of Baneful Bunker (for trapping pex) and King's Shield (for killing Aegislash). It's situational but it's not bad either, it's nice to have it when you have it.
The fire starters also got dealt a good hand.