No natures are given, nor does it say if this is in-game or competitive, so I'm just going to post some natures for the movesets (don't use them if you don't have the right nature or it won't work!) and assume this is competitive, because that's pretty much all I'm good at with team building.
Blaziken@Salac Berry
Jolly Nature
-Swords Dance
-Blaze Kick
-Reversal
-Endure/Substitute
A traditional reversal set. Swords Dance to beef up the attack, Endure or Substitute for when you need a reassurance that Blaziken won't get one-hit-KOed, Blaze Kick for when the Blaze ability kicks in (no pun intended), and Reversal for when HP is low and Blaze Kick would be ineffective.
Flygon@Life Orb
Adamant/Jolly Nature
-U-Turn
-Roost
-Dragon Claw
-Earthquake
Pokemon that are a threat get either Dragon Claw or Earthquake, whichever is more effective. Roost is to restore damage, and U-Turn for a quick escape from those that you can't beat.
Armaldo@Leftovers
Adamant Nature
-Rock Blast
-Earthquake
-Swords Dance
-X-Scissor
Do a Swords Dance or two, then sweep. Rock Blast for breaking Substitutes, X-Scissor for grass types, and Earthquake for most threats.
Milotic@Leftovers
Bold Nature
-Rest
-Sleep Talk
-Ice Beam
-Surf
Marvel Scale gets activated upon sleep, and Sleep Talk keeps Milotic from being worthless. Just hope that it doesn't Sleep Talk Rest over and over again.
Metagross@Choice Band
Adamant Nature
-Explosion
-Meteor Mash
-Earthquake
-Bullet Punch
Meteor Mash and Earthquake cover most threats in competitive. Bullet Punch is a present for those faster than you, and Explosion when you simply can't hold out any longer.
Alakazam@Choice Specs
Timid Nature
Ability: Synchronize
-Psychic
-Focus Blast
-Hidden Power (Fire)
-Trick
STABed Psychic+Choice Specs hurts a lot. Focus Blast for Steels, Darks, and Blissey. Hidden Power for Steel/Psychic pokemon, and Trick to screw up everything that tries to wall this.
Hope that helps.