- This Pokémon is immune to Ground-type moves.
Level 100 Statistics (see level 5, 50, 100)
Weezing makes for a fantastic defensive Pokemon in UU, possessing useful resistances to Fighting, Grass, Poison, and Bug, an immunity to ubiquitous Ground-type attacks, and only a single uncommon weakness, all backed up by a sweet Defense stat. While his lacking Special Defense leaves him vulnerable to powerful STAB attacks from that end, he maintains the ability to switch in on a variety of threats and threaten them with his surprisingly large movepool. All in all, while Weezing may not be up to par with behemoths such as Skarmory or Hippowdon in OU, he has anchored himself as a top-tier wall down in the bright and ambitious little UU tier.
By focusing entirely on Weezing's lower Special Defense stat and trusting on his naturally high Defense to be sufficient without additional investment, Weezing becomes an effective check to a variety of attackers, both special and physical. In particular, this set is notoriously effective at checking the versatile Venusaur; from Swords Dance to specially-based variants. With the given EV spread, Weezing takes no more than 43.7% from Venusaur's Life Orb Leaf Storm, while Power Whip does even less and can be weakened further by burning Venusaur with Will-O-Wisp. With an immunity to Spikes and a neutrality to Stealth Rock, Weezing can switch in and out without taking any major residual damage, which really helps him in taking Venusaur's assaults. Weezing can also fend off other Grass-types, such as Sceptile, in the same manner.
Even with the touched-up EV spread, Weezing is no slouch physically, having enough physical bulk to comfortably keep threats such as Torterra, Hitmonlee, Hitmontop, and Donphan at bay. Will-O-Wisp also somewhat balances this "loss" of physical bulk, allowing Weezing to burn overzealous physical attackers attempting to exploit this set's lack of investment in Defense. Sludge Bomb is Weezing's main attacking option, as it has STAB and hits many Pokemon for solid, neutral damage. It also has decent synergy with Will-O-Wisp; Steel-types, immune to Sludge Bomb, will find themselves fainting from Will-O-Wisp in a matter of turns if they lack a recovery move. Rest and Sleep Talk keep Weezing healthy while ensuring that he is not helpless while he is asleep, preventing him from being beaten by Sleep Powder Venusaur.
Team Options & Additional Comments >>>
This Weezing is almost the definition of a full-stop to physical attackers in UU; with full investment in his Defense, even a Swords Danced Kabutops's Life Orb-boosted Stone Edge won't be able to bring him down, not even after Stealth Rock! Flamethrower and Thunderbolt form the core of Weezing's attacking moves here, granting super effective coverage on a great many physical attackers. Will-O-Wisp and Haze enhance Weezing's walling capabilities further by permanently crippling his opponents or clearing away any stat boosts they may have acquired, respectively. With only one moveslot left, Pain Split is used as a means of recovering off any damage sustained.
Team Options & Additional Comments >>>
A Choice Specs set actually has a lot of potential with Weezing, thanks to his surprisingly large special movepool. However, while Poison is a great defensive type, it's pretty terrible as an offensive type, dealing super effective damage to only one other type, being resisted by four, and being completely useless against Steel-types. Rain Dance is another promising option; as a supporter, Weezing is able to deal with the Grass-types that usually trouble a Rain Dance team, and can use the rain to weaken the Fire-type attacks he himself usually fears. Sunny Day is a reverse case, making Fire-types even harder to deal with, but giving Weezing an effective STAB on Fire-type moves. Destiny Bond and Memento are useful sacrificial options on Weezing, but he's too slow to make effective use of them. Explosion is another sacrificial move that lets Weezing literally blast any Pokemon that doesn't resist it into oblivion, and is particularly helpful for disposing of Clefable and Chansey, but Weezing is usually better off supporting the team, and Pain Split will do a number on both of the pudgy Normal-types anyway. Weezing gets access to Shadow Ball and Dark Pulse, which can help him smack Psychic-types on the switch-in. Toxic is another fun status move, but many of Weezing's typical switch-ins don't particularly care about being poisoned. Finally, Black Sludge can be used over Leftovers to mess up Trick users. Conversely, it will also mean that the Trick user will have another weapon to use against your team. Going physical on Weezing, even with Curse, is never a good idea, as, to put it lightly, Weezing's physical movepool is mind-numbingly awful.
Checks and Counters
Houndoom is one of the greatest, if not the greatest, threat to Weezing, due to its Flash Fire ability. Houndoom can easily switch into Will-O-Wisp or one of Weezing's Fire-type attacks to activate Flash Fire, giving it the perfect opportunity to set up Nasty Plot and rip giant holes through the opponent's team with insanely powerful Fire Blast attacks. Any Fire-type can give Weezing trouble since they resist Fire-type attacks and are immune to Will-O-Wisp, but Houndoom remains on the top of the list. Any Pokemon with a decent Special Attack stat and access to a Psychic-type attack will always give Weezing a ton of trouble because of its low Special Defense. Chansey doesn't care if it switches into a Will-O-Wisp because of Natural Cure and can easily stall out Weezing or cripple it with Thunder Wave. Pain Split can become extremely annoying, though. RestTalkers will have fun switching into Weezing since they can cure burn status and give Weezing a ton of trouble to harm them. RestTalkers that pack a boosting move and decent Special Defense, like Poliwrath, are most effective. The only downside to using a RestTalker that packs a boosting move is if Weezing carries Haze.