Haze doesn't stop them from toxic stalling.
And is outclassed by roar and whirlwind (and to a slightly lesser extent bc of subs, dragon tail) for every purpose that does not involve evasion, and maybe when the foe is on their last mon.
While Inconsistent (and evasion) do have plentiful "counters", they're all gimmick counters, not really capable of standing up to much else. Nevermiss moves, bar aura sphere, just aren't powerful enough to be useful ouside of evasion, haze is outclassed, foresight/odor sleuth is also only useful for rapid spinning (a coverage attack is better), miracle eye only for assist power (a coverage move, once again, is better in all other cases, as well as in cases where it would ko the dark type even if not as powerful), clear smog has a very limited userpool and is generally outclassed by roar/ww (not nearly as badly as haze though).
Jonathan said:
I've tested Inconsistent Octillery extensively over the past few days, and here are my thoughts on it.
No one will deny that Inconsistent is an amazing ability, giving otherwise useless Pokemon a place on OU teams. But I see waaaay too much emphasis being placed on the "evasion boost" aspect of the ability. It's the possibility of a sharp Speed boost, and consequently the 10 or so turns of alternating between Substitute and Protect, that make this ability truly great. Even in matches where after 10 turns I end up neutral or negative in the evasion department, I'll often have enough Special Attack & Speed to rip through teams. And this an important distinction, as everyone clamoring for a ban is doing so by arguing that the Evasion boosts make the ability broken. Yes they certainly help, but from extensive experience I feel that if people want to prove that Inconsistent is broken, they will have to do so by arguing that 10 turns of +1 boosts is broken, not that it breaks Evasion Clause.
Why the Evasion aspect is overhyped: People seem so caught up in the Evasion/Speed boosts that they're completely forgetting the Evasion/Speed drops. From the moment you switch Octillery into battle, on average you should expect to be +1 in all stats seven turns later. And yes, whether you get the Evasion boost in the 1st or in the 7th turn makes a big difference, but really, is a Pokemon that on average has +1 evasion for seven turns (more like 3/4 turns if you factor in Protect) really broken? Sand Veil and Snow Cloak aren't banned because of +1 Evasion (Garchomp may have been banned last gen. but that wasn't entirely due to Sand Veil, and regardless, no one seems to consider him a suspect at this point this gen). Obviously with such an ability the boosts you get, and thus your opponent's "reaction time" to deal with this strategy vary significantly from match to match, but your opponent has roughly 3/4 turns on average to Roar you out when you're at +1 evasion. And that should happen more often than not.
There are those (myself included) who support the ban of sand veil/snow cloak under the evasion clause once all the DW abilities of sand veil/snow cloak pokemon are released and it won't ban by extension any pokemon. Last gen, we couldn't do that because banning the abilities would cause us to have to ban pokemon.
The problem is that it's not very hard to baton pass an ingrain, if you play your cards right. That means no roaring. Smeargle will also be a major problems for teams that rely upon roaring once it gets inconsistent.
How would you handle this?:
Smeargle @ lefties
252 hp/252 speed jolly, inconsistent
Sub
Spore
paralysis move/magic coat/protect
BP
Espeon
Magic mirror
Baton Pass
Sweeper
The main problem this combo faces is MH taunters. Despite being a 3 poke combo, only one of them is dedicated to the inconsistent strategy. The only way to stop it is not to have a pokemon slower than smeargle or have a MH taunter.