A Team

[Lord Mike]

Cresselia @ Leftovers
Trait: Levitate
Modest Nature (+SAtk, -Atk)
EVs: 252 HP / 100 SAtk / 152 Spd
-Substitute
-Calm Mind
-Psychic
-Hidden Power [Fighting]


Tyranitar @ Leftovers
Trait: Sand Stream
Adamant Nature (+Atk, -SAtk)
EVs: 240 HP / 104 Atk / 60 SDef / 104 Spd
-Stone Edge
-Dragon Dance
-Earthquake
-Taunt


Regirock @ Leftovers
Trait: Clear Body
Impish Nature (+Def, -SAtk)
EVs: 252 HP / 104 Atk / 148 SDef
-Rock Slide
-Earthquake
-Curse
-Rest


Alakazam @ Petaya Berry
Trait: Synchronize
Timid Nature (+Spd, -Atk)
EVs: 4 HP / 252 SAtk / 252 Spd
-Psychic
-Energy Ball
-Substitute
-Hidden Power [Fire]


Charizard @ Leftovers
Trait: Blaze
Jolly Nature (+Spd, -SAtk)
EVs: 252 HP / 60 Def / 192 Spd
-Fire Punch
-Wing Attack
-Swords Dance
-Earthquake


Empoleon @ Leftovers
Trait: Torrent
Brave Nature (+Atk, -Spd)
EVs: 204 HP / 112 Def / 100 SAtk / 92 SDef
-Ice Beam
-Surf
-Substitute
-Flail


Yeah, just some team I threw together. Its bad...

[Roihu]

Everything is practacally good. (Though I would take the speed off the Cresselia, and Tyranitar put all of it in speed and most on attack.) But the last 2 are practacally horrible... specially Charizard.

[Samson]

though it's possible and fair, using HP on any legendary is pretty cheap. it'd really make some people upset, which is why i usually suggest safely going with charge beam.

if you're going to use dragon dance ttar, i suggest you give it Chople Berry as an item. mach punch goes a long way against any ttar, as well as anything with choice scarf and any fighting type move. also, ttar doesn't need any special defense evs. sandstream already boosts its sp def by 50%.

you should REALLY consider giving regirock a fighting type move, like Hammer Arm perhaps. no one on your team has a fighting type move, and that'll be sure to screw you over, especially on something like a resttalk regirock. besides, fighting + rock has good coverage.

nothing to say about zam.

putting def AND hp evs on charizard is pointless. using a physical charizard without choice band or belly drum is pretty pointless as well. either you give it choice band, or go for a bellyzard (if you go for the latter, be sure to use Fire Punch + Dragon Claw).

your empoleon is... just wrong. please make it a starter, give it bold nature holding enigma berry, stealth rock + roar with the usual surf/ice beam combo.