I just made it to the elite four in my third time around playing thtis game, and its been harder this time to beat them (I am still training them too). Heres my team
Crobat lv. 49 @ Choice Band
HP-159, Sp. At.-94, Attack-127, Sp. Def.-97,
Defense- 102, Speed- 163
Naughty Nature
~Wing Attack Aerial Ace
~Shadow Ball
~Poison Fang Sludge Bomb
~Fly Steel Wing
Crobat rules, Fly on the other hand needs to die a very painful and immediate death. At any rate, Crobat is best off as a fast CB sweeper, so crappy two-stage moves like Fly are only going to be a nuisance, replace that with Steel Wing to gain an additional edge against Rock types. Also, since you'll be sweeping, Sludge Bomb will serve you far better than Poison Fang. The chances of getting that poisoning are too small to be worthwhile, anyway.
Beautifly lv.40
HP- 108, Sp. At.- 90, Attack- 68, Sp. Def.- 53, Defense- 52, Speed-68
Bold Nature
~Morning Sun/Attract/Substitute
~Giga Drain
~Gust Psychic
~Silver Wind Stun Spore
Sorry but...Beautifly is a pretty shabby choice. It's got hopelessly mediocre attack stats and speed with downright horrible defenses to boot. Dustox can at least serve as a half-decent shuffler. Oh well...you could always try this. Psychic and Giga Drain for damage with Stun Spore to hamper enemy attacks and either Morning Sun for shrugging of extra damage or Attract or Substitute to make it even harder for your opponent to land hits. If it weren't for the Bold nature I'd suggest going with physical attacks (Since you could use STAB and Swarm that way) but things being what they are, what I'd really suggest you to do is find a replacement. Your team needs good walling material if it's going to survive, even ingame calls for a bit more endurance.
Swampert lv 50
HP- 178, Sp. At.- 113, Attack- 135, Sp. Def.- 121, Defense- 99, Speed-91
Gentle Nature
~Surf/Hydro Pump
~Blizzard Earthquake
~Muddy Water Ice Beam/Rock Slide/Rest/Curse/Mirror Coat
~Dive Counter/Rest
No...don't...just don't treat Swampert like this. ;__; By breeding in Curse and training up a new Swampert you could get some tanking ability (Although personally, I never saw Cursepert's appeal) or get Mirror Coat to make it into a nasty little Counterper, but with this (Especially the sucky nature) I'd say go with the regular build. Surf (Hydro Pump would be better, but you'd need to keep it as a Mudkip until level 46 to get that) to make use of STAB and Torrent while Earthquake (STAB again) combined with Swampert's high Attack deals damage. Rock Slide helps against flying opponents while Ice Beam works well on fliers, dragons, and grass types (The latter recieveing the least impact as they tend to be pretty tough defensively). Counter could also be put there to deal serious retaliation damage to your opponents, while Rest helps your Swampert tank out against opponents (I'd seriously suggest using it, especially considering how frail the rest of your team is).
Minun lv. 47
HP- 127, Sp. At.- 82, Attack- 67, Sp. Def.- 102,
Defense- 70, Speed- 120
Docile Nature
~Thunderbolt/Seismic Toss
~Flash Baton Pass
~Thunder Substitute
~Agility/Encore/Thunder Wave
Another weak link in your chain. Minun is about as bad as electric types get, being even weaker and slower than Plusle. Meh, with Substitute and Baton Pass you can make it into a half-arsed passer, possibly adding Agility along for the ride, although Encore and Thunder Wave would serve better in keeping it alive. At any rate, Agility passing won't do much good for the team as it is. I'd suggest replacing this one too, try Lanturn for the bulk and movepool or Jolteon for the speed. Actually, try anything except Plusle and Minun, they'll be an improvement.
Ninetails lv. 45
HP- 131, Sp. At.- 88, Attack- 96, Sp. Def.- 109,
Defense- 82, Speed- 104
Serious Nature
~Quick Attack Will-O-Wisp/Hypnosis
~Fire Spin Attract/Confuse Ray
~Safeguard/Spite/Faint Attack/Fire Spin
~Flamethrower
Bleh, Ninetales is pretty shabby ingame unless you're prepared to go through breeding for the right moves. At any rate, Will-O-Wisp or Hypnosis is a must if you want your Ninetales to actually survive out there, while Attract or Confuse Ray can be used to add an additional layer of protection. It's annoying and kind of cheap, but at least it works...sort of. Safeguard can be passable, although Faint Attack (to widen the range of potential attack targets a bit), or better yet, a proper Hidden Power, would be more useful. Failing that, Fire Spin can help you add a bit more damage to your opponent, and Spite adds to the annoyance factor. Most of these moves require breeding, though. Anyway, what I'd really suggest is finding a better fire type. Because this one isn't going to be that much help.
Slakoth lv. 17 (Note- I'm currently training/raising it to be a Slaking) @ Choice Band
HP-49, Sp. At. 18, Attack- 27, Sp. Def.-17, Defense- 25, Speed- 15
Docile Nature
~Scratch Return
~Yawn Shadow Ball
~Encore Earthquake
~Slack Off Focus Punch/Rock Slide/Brick Break
Another born CBer. Basically the aim is to switch in, KO something, and then switch out again, and to that end, just pack as many hard-hitting physical moves on it as you can. Return (For STAB) and Shadow Ball (To deal with Ghosts) are obvious choices with Earthquake to cover Steel and Rock types. For the last move, Focus Punch deals tremendous damage, but in order to make it work you'll either have to use it on times when you know that your opponent isn't going to attack or, optionally, put the opponent to sleep or freeze it using another pokémon, in which case it won't be able to attack. Optionally, you could try a filler move like Rock Slide (Extra damage against flying types) and Brick Break (Hurts a few tough ones like Umbreon and Tyranitar while also serving to dispose of Reflect and Light Screen), just pick what you feel will be most useful for the last move.
CopyCat :t335: