Aggron
Typing: Steel / Rock
Base Stats: 70 HP / 110 Atk / 180 Def / 60 SpA / 60 SpD / 50 Spe
Abilities: Sturdy / Rock Head / Heavy Metal (Unreleased)
This heavily armored rhinocerous looks like one big, mean mofo. But looks are not all Aggron has going for it, for it is one of the most potent offensive threats in the BW RU metagame. In a tier lacking monster physical walls such as Skarmory and Hippowdon, Aggron is freed from shackles and ready to wreak havoc. With abysmal speed, horrendous Special Defense, good but unspectacular Attack, and one of the worst defensive typings in the game, Aggron doesn't seem like much of a threat at first glance. But it has one ace in its hand: Rock Head Head Smash. Anything without a Rock resist and spectacular Physical Defense is going to be rocked hard. Aggron has access to Automatize and Rock Polish to get the jump on faster threats and sweep unboosted by virtue of its sheer power. It can also equip a Choice Band and rock switchins hard, clearing the field for a teammate to sweep. With physical defense topped only by Steelix, Aggron has no trouble getting in either, putting tremendous pressure on the opponent with its mere presence. Speaking of Steelix, it is the best Aggron counter in the tier. With a x4 Rock resist and 200 Base Defense, Steelix can easily shrug off Aggron's Head Smashes and can return fire with a x4 STAB Earthquake.
Claydol
Typing: Ground / Psychic
Base Stats: 60 HP / 70 Atk / 105 Def / 70 SpA / 120 SpD / 75 Spe
Abilities: Levitate
Once heralded as one of the best Rapid Spinners in the game, Claydol has fallen from grace. With each passing generation, the former ADV OU staple falls more and more towards the abyss and now finds itself in the RU Tier. Claydol possesses many traits that allow it to remain one of the most useful Pokemon in the tier. Immunity to Spikes and Toxic Spikes, along with a Stealth Rock resistance, make it the ideal Rapid Spinner. Claydol also boasts an large support movepool, including Stealth Rock, Toxic, and Dual Screens. Claydol has excellent bulk with 60/ 105/ 120 Defenses. Add that to many useful resistances to Ground, Electric, Rock, and Fighting, and you have yourself a Pokemon who can fit onto any team. Unfortunately, Claydol suffers from a lack of reliable recovery, weak offenses making it incredibly difficult to break through spinblockers, and weaknesses to Dark, Bug, and Ghost. But don't let these shorcomings fool you. Although Claydol has fallen out of favor in the upper tiers, it returns to form at the top of RU, and is a threat to be reckoned with.
Cofagrigus
Typing: Ghost
Base Stats: 58 HP / 50 Atk / 145 Def / 95 SpA / 105 SpD / 30 Spe
Abilities: Mummy
Part of Cofagrigus' name aptly describes every Offensive RU player's opinions of it: a complete (BAN ME PLEASE). With many great qualities, the most impressive being an astounding 145 Physical Defense, Cofagrigus is an absolute pain to break through. Cofagrigus wields a unique ability in Mummy, which allows it to change the opposing Pokemon's ability upon physical contact. It also has access to Will-O-Wisp and Toxic, allowing it to outstall many naive attackers who thought they could break trough. Not even setting up is a reliable way to defeat it since Cofagrigus can simply use Haze to eliminate stat boosts. Perhaps the only trait preventing Cofagrigus from walling the entire RU Tier to kingdom come is its lack of reliable recovery, with Pain Split and Rest being its best options. Unfortunately, the former is rather unreliable and the latter puts Cofagrigus out of commission for multiple turns. That being said, Cofagrigus is probably the best Spinblocker in RU, in fact it is the bulkiest Ghost Type in the game bar Giratina and Eviolite Dusclops. With RU being so dependent on entry hazards, Cofagrigus' spinblocking talents are a welcome addition to any team.
Electivire
Typing: Electivire
Base Stats: 75 HP / 123 Atk / 67 Def / 95 SpA / 85 SpD / 95 Spe
Abilities: Motor Drive
Electivire has been the butt of many jokes throughout its bumpy ride in DPP OU, commonly refered to as "Noobvire", it now finds itself in a more "appropriate" tier in RU. For starters, it is actually a very competent Offensive Pokemon in RU :) With the addition of Wild Charge, Electivire no longer needs to rely on weak STAB options such as 75 Base Power Thunderpunch and 95 SpA Thunderbolt. Unfortunately, Electivire's main shortcoming remains the lack of reliable stat boosting moves, meaning it can still only KO frail or weakened opponents. However, Electivire still makes a solid late game sweeper by virtue of incredible Super Effective coverage, made possible by its plethora of excellent coverage moves. Furthermore, Electivire's signature ability, Motor Drive, gives it a useful electric immunity. It can also pick up a free Speed Boost by simply switching into electric moves such as Thunder Wave or Galvantula's Thunder. Any Ground resist with reasonable physical bulk will put a full stop to Electivire. However, if partnered with a wallbreaker or strong physical attacker to eliminate or weaken these threats, Electivire is more than capable of running through a team.
Gallade
Typing: Psychic / Fighting
Base Stats: 68 HP / 125 Atk / 65 Def / 65 SpD / 115 SpD / 80 Spe
Abilities: Steadfast / Justified
The Martial Arts Zen Master is back for 5th Gen and ready to rip RU a new one, this time with a new toy from Dreamworld in the form of Justified. A vicious STAB Close Combat coming off Base 125 Atk makes Gallade the very definition of a power hitter. Combine that with Swords Dance and you have yourself a potent sweeper. While Gallade is not exactly Deoxys-S, it is not lacking in the Speed department either, and can use Shadow Sneak to ward off potential revenge killers. Gallade is also capable of running an effective Bulk Up set. Even though Drain Punch is illegal with Justified, Gallade's above average Special Bulk makes Bulk Up an excellent option. Excellent coverage moves such as Night Slash, Psycho Cut and Ice Punch make Gallade incredibly difficult to wall. Access to a plethora of support moves makes it extremely versatile and unpredictable. Taunt, Substitute, Disable, Trick Room, Thunder Wave, the list goes on and on. With that in mind, Gallade is not unstoppable, as many Pokemon can outspeed and exploit Gallade's weak Physical Defense for a KO. Even so, Gallade is without a doubt one of the premier threats in BW RU, and has the offensive presence to back it up.
Honchkrow
Typing: Dark / Flying
Base Stats: 100 HP / 125 Atk / 52 Def / 105 SpA / 52 SpD / 71 Spe
Abilities: Insomnia / Super Luck / Moxie
Honchkrow is unfortunately one of many victims of 5th Gen power creep. However, its drop in popularity is a blessing in disguise, for the big boss mobster is back and ready to coordinate kills in RU. With deadly STABs such as Brave Bird and Sucker Punch, coupled with great coverage moves such as Superpower and Heat Wave, very few Pokemon can take hits from the big bad crow. Through Dreamworld, Honchkrow adds Moxie to its arsenal, giving it even more sheer power than before! Unfortunately, Honchkrow's two best coverage moves are currently illegal with Moxie, but with just Brave Bird, Sucker Punch, and Moxie, Honchkrow can already tear through a good portion of the metagame. However, the head honcho still suffers from the same problems. It's laughable Defenses, exacerbated by middling Speed and a Stealth Rock weakness, make Honchrow a very fragile Pokemon. However, don't under any circumstances underestimate it. For the offensive presence alone is more than enough to earn Honchkrow a spot at the zenith of RU threats.
Krookodile
Typing: Ground / Dark
Base Stats: 95 HP / 117 Atk / 70 Def / 65 SpA / 70 SpD / 92 Spe
Abilities: Imtimidate / Moxie / Anger Point (unreleased)
Despite Krookodile's suggestively shaped head, this 5th Gen newcomer is one of BW RU's very best. With two excellent abilities in Intimidate and Moxie, as well as a useful Ground and Dark Defensive typing, Krookdile finds many opportunities to enter the field and let its presence be known. STAB Earthquake and STAB Crunch allow Krookodile to hit a huge portion of the RU metagame hard. Combine that with Choice Scarf and Moxie, and Krookodile can very easily start up a snowball sweep. Although 117 Base Attack and 92 Base Speed aren't exactly overwhelming, they are more than enough for Krookodile to holds its own in RU. Defensively, Krookodile is no slouch either, as Intimidate provides it with ample opportunities to switch in and hit hard. Krookodile's greatest asset is that STAB Pursuit. In a hazards dominated RU metagame, Krookodile's ability to checkmate spinblockers makes it stand out like a beacon of light. Anger Point, like glasses Krookodile in the anime, does not currently exist, but likely will in the future. Although Intimidate and Moxie are superior abilities, Anger Point fits Krookodile's character better. If you mess with this bad boy, he will make you pay.