Let's crank my rate skills!
Latios Lv: 90
Item:Leftovers
Dragon Claw
Ice Beam
Psychic
Dragon Dance (replace with calm mind)
d-dance raises speed and attack... and all of the offensive moves are special-based. Better to go with calm mind. You get STAB from dragon claw and psychic, but *i think* ice beam will do more damage to other dragon pokes which are half flying or ground. I don't have a calculator on me. Thunderbolt is an option over any of those moves. Modest or Timid are the ideal natures.
Groudon Lv: 100
Item: Shell Bell
Earthquake
Solarbeam
Flamethrower
Fissure (replace with bulk up)
Hmmm... replace fissure wuth maybe another attack move like brick break, or bulk up to power up EQ. EV split will make Groudon's special attack lower than usual, so ideal nature is - defense (defense is already high and ground's weaknesses are all special based), and + special attack. MAYBE (not sure) many ev's into special attack and speed so bulk up will take care of attack and defense.
Alakazam Lv: 50
Item: Twistedspoon
Psychic
Psybeam (replace with fire punch)
Recover (replace with ice punch)
Future Sight (replace with thunder punch)
0o0... hmm. Catch a male medicham, get some heart scales off luvdisk, teach the medicham the forgotten fire. ice, and thunder punches, then breed him with a female abra. Alakazam is a pure special attacker, so Psychic and the punches are great on him. Timid or Modest are the ideal natures with ev's into special attack and speed.
Cacturne Lv: 52
Item: Miracle Seed
Needle Arm
Giga Drain
Pin Missile
Faint Attack
doh... i'm not good with the weird players like Cacturne. Well, modest is a good nature, pin missle is bad on it... sorry, I'll leave this to a smart person like Frosty ;). Beware for this guy is slow and has bad defenses. Maybe sandstorm on him somewhere to take advantage of his ability.
Crobat Lv: 67
Item: Leftovers
Fly
Toxic
Sludge Bomb
Shadow Ball
This is ok if it were adamant. There's also the option of the classic trap and annoy. Confuse ray, mean look, fly/wing attack, toxic, etc...
Linoone (Shining) Lv: 79
Item: Nothing
Surf
-
Hyper Beam
Ice Beam[/QUOTE]
Hmmm... Linoone isn't that great, Slaking and Zangoose are better options for normal types. Anyway, sorry, I'm not sure of a standard here. I do know special attack is low.
Since I'm not experienced with items, I'll leave those to someone else.