
Item: Lum Berry
Personality: Hardy
Trait: Torrent
Surf
Ice Beam
Earthquake
Refresh/Mirror Coat
Self Explanitory.

Item: Lax Incense
Personality: Modest
Trait: Magnet Pull
Thunderbolt
Thunderwave
Metal Sound
Reflect
Set 'em up, knock 'em down. Set 'em up, knock 'em down.

Item: Bright Powder
Personality: Bold
Trait: Levitate
Night Shade
Will O' Wisp
Confuse Ray
Psychic
Keep 'em from doing much damage, or even attacking at all, then just whale on 'em. Bold to raise his lastability up a bit.

Item: Leftovers
Personality: Modest
Trait: Clorophyll
Leech Seed
Giga Drain
Toxic/Ingrain/Synthesis or Moonlight
Psychic
Vampiric eggy. Bwahaha.

Item: Chesto Berry/Scope Lense
Personality: Brave
Trait: Guts
Revenge
Earthquake
Rock Slide
Rest/Focus Energy
Before you immediately lambast me and say Brick Break or Cross Chop, over Revenge, let's take a look at it. On it's own, it's a 60 BP move, 90 with stab. Nothing special. It's effect however, doubles it's BP, IF the user takes damage in the same turn it is used.
Machamp's already horrid speed, plus the Brave trait, ensures that he couldn't outrun an 80 year old tortoise with broken legs, making him an effective user of Revenge. So any time the opponent attacks, and I decided to use Revenge, I absolutely whallop them with a 180 BP move backed by a humongous attack.
I can't decide wether to go with stability or power with his item and lost slot though. You tell me. I'm leaning towards Focus Energy and Lense Scope, to pack on the Revenge damage.

Item: Shell Bell
Personality: Serious
Trait: Sand Stream
Earthquake
Rock Slide
Crunch
Roar
Self explanitory.