I definitely agree with pretty much everything Chou Toshio said on the previous page, especially about Genesect. Although this thing absolutely wrecks on the lower ladder where players seem to have little knowledge on how to deal with this thing, the higher I go up on the ladder, the harder and harder it gets to just spam U-turn or sweep first turn with Rock Polish. The teams start to become a lot bulkier, entry hazards, priority users like Talonflame, Mega Kanga, and T-Wave Thundurus-I are even more common than in the lower ladder, Heatran is everywhere because of Talonflame, so many Pokemon carry Will-O-Wisp which is really annoying, and much more. The Scarf set is still fantastic, and is arguably one of the only few consistently good Choice Scarfers that OU actually has right now, but I just don't see it being nearly as overcentralizing or devastating as it was last generation. It wasn't just the fact that its coverage moves got nerfed, it just seems that it finds a much harder time to bust through things like it could last generation, most likely due to the massive amount of bulky Pokemon in OU now, like Goodra, Aegislash, Mega Kanga, etc. Of course I still think it's a bit too early to come to a conclusion on if it's still too good for OU, but when I've been using it recently, I was surprised to see Genesect actually having trouble against more standard teams. Nevertheless, it's still Genesect, and this thing is definitely a top tier threat in OU, and personally I think it's a great addition to the tier as of now.
Now it sucks because I haven't gotten to use Manaphy, Landorus, or any of the genies, but all I can say is that I hope to god that the Aeroblast rumor is correct, or else I don't see a bright future for Tornadus-T and its counterpart this generation, because having to rely on a inaccurate STAB Hurricane sucks unless you want to sacrifice valuable team spots in order to run a lesser Politoed. Thundurus-I on the other hand, is so threatening, and for all the people saying that this thing is underwhelming, are clearly not using this thing correctly. Prankster T-Wave is stupid good, and its Nasty Plot sweeping sets are so powerful, capable of breaking through even the bulkiest Pokemon in the tier thanks to its awesome coverage. I've been swept by it countless of times, and I'm looking forward to using it. Landorus is another Pokemon I haven't gotten to try yet this generation, and I'm excited to give it another go. Sure the HP Ice nerf hurts, but it still OHKOs what it needs to OHKO, like Garchomp, Gliscor, Landorus-I, Dragonite, etc. so it's not much of a problem for it. The thing that really sucks for Landorus, is that one of its best counters, Rotom-W, is being used on pretty much every other team because of Talonflame. Although the physically defensive variants take a TON from Focus Blast, having to rely on that move to hit its #1 counter sucks. Still, I see physical and special Landorus being as good as ever this gen, and the RP set can prey on many of the Pokemon that litter the tier.
The Deoxys forms are a different story. Deoxys-D is arguably the best user of entry hazards in the tier because of its massive defenses, reliable recover, and amazing movepool. Deoxys-S on the other hand, suffers greatly from the Defog buff, as its Lead hazard sets are no longer nearly as incredible as they once were, because hazards are much easier to remove this generation. Not all is bad for Deo-S though, as I've learned that this thing is probably one of the best revenge killers in the tier, thanks to its incredibly high Speed, insane coverage, and great offensive capabilities. This thing can outspeed Scarf Genesect and destroy it with HP Fire or Fire Punch, Superpower mauls Tyranitar, Ice Beam for the Dragon-types, Psycho Boost for nuking shit, etc. It's soooo good. Definitely a cool Pokemon.
Excadrill is probably the most influential Uber Pokemon OU got this generation. I don't understand where some of you guys are coming from with Excadrill being subpar due to the weather nerf. Excadrill is the best spinner in OU, bar none, and it faces no competition from Defog users because it's just so fucking amazing at what it does. Excadrill wasn't successful just because of Sand Rush. Besides, it's not like Excadrill can't still run Sand Rash to screw with opponents that use Tyranitar, or heck, even yourself. It has 5 turns to wreck havoc. However, I think Excadrill finds its greatest success with its ability Mold Breaker, as it is able to beat Rotom-W which would normally be one of its best counters. Not only is Excadrill one of the best Rapid Spinners in the tier, but damn is this thing powerful. It hits so hard coming off of that massive 135 base Attack, and it has great coverage with Rock Slide + Earthquake + Shadow Claw. Did I mention that it can beat pretty much all of the common spin blockers in the tier? Trevanent is 2HKOed by a Life Orb Shadow Claw, Jellicent is destroyed by an EQ, and Gengar has to rely on the unreliable Focus Blast if it wants to OHKO Excadrill, and even then the rising popularity of Assault Vest Excadrill can keep Gengar from beating it altogether. Anyways, Excadrill is definitely one of the most influential past Ubers that Gen 6 has given us thus far, and I hope to see this thing quickly rise to the top of OU with little effort.
All in all, I am very happy with most of the Uber Pokemon this generation, and I'm surprised to see how manageable, but influential most of these have become. I honestly think all of these Pokemon are healthy for the OU metagame and keep the tier balanced, maybe with the exception of Deoxys-S, but it's too early to say. I personally don't mind it, nor its defensive counterpart.