Kaboom Mew is an amazing lead:
Mew @ Normal Gem
Trait: Synchronize
EVs: 252 Atk / 4 Def / 252 Spd
Adamant Nature
- Stealth Rock
- Taunt
- Explosion
- Tailwind
This Mew is awesome, I first saw it on the ladder a few times, and then later I saw a variant with Tailwind on Jimbon's RMT: Weird Fish. This Mew is a lead for HO teams, and an effective one at that. This thing can provide Stealth Rocks, and then use Explosion to "spin block" (Rapid Spin only spins away hazards if it hits, as long as the opposing Rapid Spinner is slower than Mew, you can not only prevent hazards, but Mew will likely KO the opponent / bring it into KO range for one something else in your team.) A max attack, Normal Gem boosted Explosion is going to be OHKOing about 95% of pokemon that don't resist it, which is great because people don't usually bring out their steel-types against Mew, fearing more common moves found on Mew, like Fire Blast, so it's very likely Mew will get a kill. Taunt not only prevents opponents getting up their hazards, it also makes a great combination with Explosion, because it can prevent the opponent from using Protect on the Explosion. Tailwind is in the last slot, and although you won't get a chance to set-up a Tailwind in most matches, every now and then you'll be able to Tailwind, Explode, then bring in a sweeper that's particularly dangerous when it can outspeed everything, if this happens you'll likely be in an amazing position from the very start of the match. The 4 Defense EVs are to give Genesect a Special Attack boost rather than an Attack boost, this is because U-Turn is much more common than Bug Buzz, and if they go for Bug Buzz instead of U-Turn; it prevents the opponent from gaining momentum when you switch Mew out. Overall, this Mew is like a very bulky Azelf, with far more suprise factor and access to Tailwind. The suprise factor it provides is often enough to catch the opponent off guard. This suprise factor may even let you KO the opposing team's counter to your sweeper with Explosion, which may even result in a sweep that your opponent couldn't prevent after they'd unexpectantly lost that sweeper's counter. Meaning, this Mew can win you the game in the first 2 turns.