I will address all accumulated posts tomorrow at around 1:00 PM eastern time. I recognize that this list should be organized based on the merit of each individual ability and not the distribution. i tried to follow this schematic, which in part explains why i put wonder guard and pure power in S (although admittedly it takes no great imagination to figure out how badass these abilities are). however, i have made oversights and i will address them as soon as i can. Rattled is the major one (i thought it lowered speed by 1 stage, lol), but some of the abilities such as overgrow and sap sipper are rightly placed in my opinion because grass is simply inferior to fire attacks and water attacks and thus are less common and less useful. like i said, i will go into more depth tomorrow as to my opinions on the controversial cases. Also, for the sake of this Thread, i would like to focus on single battles, at least for now. i could have a parallel set for doubles after we straighten out the singles tier list, but before i address doubles, i would like to learn more about the metagame. finally, i may run polls on those abilities that people constantly disagree on in a couple weeks, if any still exist then. Thanks and keep up the excellent feedback
I disagree with your assertion that grass types are strictly inferior to Fire and Water moves. There are LOTS of powerful grass type users in the metagame, and furthermore Sap Sipper also provides immunity to a large number of status moves, including the infamous Spore and Leech Seed. That's no small deal. Overgrow might be marginally worse than Blaze and Torrent because Grass isn't AS potent an offensive type, but it's not so much that it deserves to be a whole tier lower. Again, the reason we never discuss it is because the Pokemon that get it are so rarely offensive that it doesn't come up, unlike Blaze where all the fire type staters are offensively inclined.
I really have to agree with Voodoo Pimp on the basis that F Tier should only be strictly detrimental abilities; Color Change is a bit iffy, but it isn't entirely detrimental and can [sometimes?] be used as an advantage so I'd say E Tier there. Even Honey Gather should be E Tier, since I think all the Slakings out there would really prefer Honey Gather to Truant. Jimera0 has also made some very good suggestions to your list, most of which I agree with, although I don't think Sand Stream is S Tier, given the fact that there are few abusers at the moment, and it's usually used to insure a team against other weather, given how easily Tyranitar can fit on a team; not to mention Tyranitar was used primarily in Gens 3/4 because it was a great Pokemon, Sand Stream was just a neat bonus; the same is true with Hippowdon but to a lesser extent. Hail overall is probably a better ability than Sandstorm; it's just unlucky enough to have a lackluster starter, compared to Sand or Rain. I'd also consider moving Unaware to S Tier; Quagsire is by no means a great wall, but it's such a fantastic asset to teams and there have been a few teams to even peak #1 with it, all because of what a useful ability Unaware is. Quagsire is able to fill a unique and really great niche in the metagame because of this ability and it would hardly see the light of day otherwise.
No I think F tier being for abilities that are completely useless
and / or detrimental is better. We don't need a jillion tiers; the 6 we have is enough already. Also, just because an ability can be given to something else to hurt it doesn't make it any more tan F tier; I don't think we should be considering stuff like Entrainment in our tiering. I still think Sandstream deserves to be S tier; the only reason that not everything that has it is OU is because Tyranitar gets it and outclasses almost anything else that could get it. That's the Pokemon doing that, not the ability. I think that the effects permanent sandstorm has are too incredibly powerful to not be S tier. We simply forget this because Sand Stream has been around so much longer than the other weather changing abilities (in OU anyway) that we forget how potent it really is.
As for Unaware, no no no not S tier. It's good but it's not THAT good. A tier for sure, but it's not Magic Bounce levels of game changing. I consider it somewhere near the level of Magic Guard; ALMOST S tier but just not quite. If it had better distribution we'd totally realize this more.
I would say C, maybe D at the lowest. Pickpocket only works if you're not holding an item, and unless you're using Acrobatics, having an item is generally better than having no item, and taking your opponent's item is generally better than letting them keep it. Sure, it's a weak ability, but like I said above, F tier should be reserved for completely useless/detrimental abilities, neither of which fit Pickpocket.
Agreed, it's situational but it's not detrimental. I mean, if you didn't want to take advantage of it you can still wield an item. It's not totally useless either. It's just not something you'd use most of the time. D class would be my placement for it, since not being able to chose your own item is rather bad, even if you do get to steal an opponents item.
Why is Tinted Lens B ranked? You're telling me that you'd rather have Moxie than have your moves' power DOUBLED if resisted? That's perfect neutral coverage for Dragons and Great Fighting-type coverage. There is no way it belongs down there.
Yes I'd rather have Moxie, but not by a great margin. I do agree Tinted Lens deserve A rank; it'd give you almost completely unresisted coverage for MOST attacking types, and dragon would get COMPLETELY unresisted coverage. That's pretty damn big (imagine Tinted Lens Haxorus. Now weep.)
Magic Guard is pretty much strictly better than Overcoat, though.
I'm agreeing with a few other users that the bottom tier should be for completely useless/detrimental abilities. Though, even stuff like Truant can be competitively useful - just look at Dream World Durant for an example, who can Entrain it onto other Pokémon then allow Shadow Taggers/Arena Trappers to set up. Even something like Stall could be used to ensure your U-Turn is slower than the enemy (you could imagine something very slow setting up Trick Room, then using U-Turn to a slow sweeper, and using Stall to ensure the U-Turn went second).
As I said before, the possibility of giving a bad ability to something else doesn't make it any less a bad ability and any less F tier. As for Stall being potentially useful for Volt-Turn... no, just no. A slow Volt-Turn is NOT worth always going last. Use a slow Pokemon with Volt-Turn instead. Sure you might outspeed things in Trick room but that's not common enough to make Stall seem useful. It's detrimental, hands down.
I wouldn't leave Keen Eye at D tier. It's not too bad in-game, but in this meta with accuracy-lowering moves like Sand Attack and Smokescreen banned, it becomes almost entirely useless. There are very few competitively-viable moves that lower accuracy- the closest you'll get is Muddy Water, but everything that can use it will almost always use Surf instead. Definitely needs to be moved down to F tier.
This is a competitive list, so in game performance doesn't matter worth a damn. Also, Smokescreen, Sand-Attack Kinesis and friends are NOT banned; EVASION moves are banned, not ACCURACY moves. No one uses them because they suck is all. That's why it's D tier; there are situations where you could POSSIBLY have it kick into effect, it just comes up very, very uncommonly. That's why it's D tier; it might be useful once in a blue moon, but it's usually as if it didn't have it.
How is Sand Stream not S-tier? Tyranitar has been one of the top 10 most used pokemon for THREE GENERATIONS, and Sand Stream has defined the metagame. And we've already banned TWO pokemon in this metagame alone simply from the effects of Sand Stream (Garchomp/Excadrill). Not to mention it cancels out two other S-tier abilities completely.
Yeah agreed, though I would like to point out as I usually do that Garchomp was not banned SOULY due to Sand Veil. Sand Veil was just the icing on the broken Garchomp cake. Anyway, that's not really important.
@DetroitLOLcat's list
I'll point out which of his changes I disagree with here.
Contrary: I'm not sure, most Pokemon get attacking moves that lower stats when used, and the ability to raise your stats by attacking with a powerful move is ridiculously power. Hell, people can and HAVE used SPINDA successfully in OU because of Contrary. THAT speaks volumes about it's S tiered-ness. Even moves like Close Combat that'd only boost defensives are amazing with this ability; 120 BP move and Cosmic Power combined? Holy hell, yes please!
Adaptability: No, I think this is A tier. It makes some Pokemon, such as Basculin in the lower tiers and Porygon-Z. It's not comparable to Tinted Lens, which only affects the attack when it's resisted; Adaptability is active all the time. It might not be high A tier, but it's still A tier.
Flash Fire: Hell no! This ability is SO A tier. It MAKES Heatran, and other Pokemon that get it benefit greatly for it. Fire is a very potent and common attacking type so being immune to it is a huge boon. The sheer EXISTENCE of Sun makes any immunity to sun A tier, because otherwise stuff like Chandelure and Darmanitan would just run over absolutely everything.
Guts: No, it DOES make Pokemon, it's not just a nice add on. The fact that Flame/Toxic Orb sets exist for every Pokemon that gets it speaks volumes; that passive 1.5x attack boost for just being on the field is massive. I mean, look at Heracross. It can OHKO/2HKO EVERYTHING IN OU with SD + Toxic Orb. That's saying something.
Harvest: Already expressed my views on this; until the pinch berries get released, this ability is solidly B or C tier. There just aren't enough good berries to make this ability anything else at the moment.
Lightning Rod: Again, NO NO NO. Any ability that gives you an extra immunity is damn game changing. One that also gives you an attack boost? HELLA GAME CHANGING. It just isn't given to enough Pokemon that can really use it (LOL Seaking, special attackers like Manectric that already resist Electric anyway, Pokemon already immune to electric like Marowak and Rhyperior, meaning they don't get the attack boost.) Don't forget that Volt-Switch is a staple of our current metagame, and that Thunder Spam is very common in Rain. Definitely still A tier.
Magnet Pull: I'm somewhat torn between moving Magnet Pull to S tier or moving Arena Trap to A tier. They both are very potent abilities. I'm starting to learn towards S tier for both now, seeing as if it weren't for Magnet Pull Magnezone would probably be UU or RU. Obviously, Arena Trap MAKES Dugtrio. So yeah, S tier for both I think.
Sturdy: No, it's A tier. A free focus sash is a BIG deal even with hazards and stuff around. It prevents things from guaranteed sweeping you if you can keep hazards off, which in this meta is definitely game changing fairly frequently. And then there's the fact that it's reusable if you can heal back to full health. It might not be high A tier, but I still think it IS A tier.
Volt Absorb: See Lightning Rod. Electric type attacks ARE common in this meta, and Volt-Switch alone makes any Electric Immunity a godsend.
Air Lock: With so many potent weather abilities, I think this deserves B tier. It just needs to be given to Pokemon that can do something BACK to weather abusers and aren't in Ubers is all.
Cloud Nine: See Air Lock
Marvel Scale: Already made my case for this being A tier, in particular due to its effectiveness when paired with Rest (which everything gets remember).
Multitype: In my opinion Multitype really depends on whether there'd be a cue to show what type the Pokemon is that has it or not. With Arceus we have visual cues, but what about other pokemon that could get it? If you knew what type it was, it'd stay right here. But if you didn't... it could very well have a case for S-tier.
Rough Skin: Yeah this and Iron barbs being in different tiers makes no sense. They're the same damn ability basically. B tier for both of them.
Static: I dunno, random paralysis is pretty damn useful when it does happen. It might not be high B tier, but I think that if Flame body belongs here, so does Static.
Frisk: Actually I agree with low B tier. The instant scout is damn nice, it's just that crappy Pokemon get it. I missed this last night b/c I was tired out of my mind >.<
Hustle: Again, don't know why I didn't say anything before. It might come with a big drawback, but a passive 1.5x boost is too good for this to be C tier.
Ice Body: I dunno about this one, Hail isn't quite as good as other weather conditions, though it is somewhat of a borderline case. I wouldn't raise it a tier myself but I won't complain if it does get raised.
Illusion: More inclined to A tier it myself, since it is what makes Zoroark even worth considering. Hard to use though so I dunno, maybe B tier isn't bad for it. C tier is definitely a bad spot for it though.
Insomnia: Still thinking this is A tier. If something actually GOOD god it we'd all be packing Insomnia users, because shit like Breloom exists. Sleep is crippling as all hell; you can't imagine how many times I've wished for a sleep immunity on my team. If you can't stomach A tier, yeah I suppose B tier is ok. I mean, it is outclassed a bit by Poison heal I suppose.
Justified: I dunno, anything that gives you a free attack boost is pretty nice. Sure Dark type moves aren't that common in OU, but they are around. Hydreigon and Tyranitar both use them fairly frequently. So C tier is where I think this belongs.
Klutz: OK, now that people have pointed out its merits to me I can see why this isn't F tier. But still. D tier is better. Sure it has some situational use, but most of the time
you're out of an item. Not a good thing.
Mummy: Already have detailed why this deserves B tier. Abilties are very potent this generation and the ability to deactivate them temporarily is pretty damn cool. If only it lasted for the whole battle, this ability would be solid A tier material.
Normalize: Wait, what IS Normalize. *looks it up* OH. Wow. Ok, that is pretty bad. It means you get no coverage. Even if it makes everything STAB for you, it still means YOU HAVE NO COVERAGE. Unless someone posts an actual use for this, I see no reason for this to not be F tier.
Poison Point: Yeah D tier probably is better now that you mention it. I mean, I usually actually LIKE getting normal poisoned because it grants you immunity to worse status conditions. It can be a little hampering, but overall, not a great ability.
Poison Touch: See Poison Point.
Pressure: Now that you mention it I agree, it's very potent on defensive Pokemon, especially considering the popularity of 5 PP (8 PP max) moves. Not always useful, hence not A tier, but more so than C tier I think.
Rain Dish: I'd argue for A tier, since 12.5% passive healing PLUS leftovers lets you recover 18.75% of your HP a turn without doing anything. That's a LOT of health, and makes sub-stalling absolutely deadly. How this amazing ability ended up C tier I don't know.
Rock head: Yeah I suppose I agree with this one. A lot of recoil moves are very powerful, so the ability to use them freely without drawbacks is a pretty big deal. B tier for sure.
Scrappy: How did I miss this my first time through? Yes, definitely B tier, as being able to hit Ghost Types through their immunities is a big deal. Now imagine it being given to a rapid spinner... damn, it's almost A tier.
Shield Dust: No I think C tier is good for this. Sure protection from Scald and Serene Grace users is nice, but it's quite situational and most of the time you'll hardly notice it's there. High C tier, but probably not more than that.
Skill Link: NOOOO A tier! Or at least B tier! Multi-hit moves are BEASTLY powerful this generation. Definitely not C tier though!
Alright, that should cover it for now. I'll be back later...