2 choiced Poke's and a Life Orb means you are either gonna be switching a lot or a lot of attacks will be resisted. not to deviate from your team, but i will post the Sand Team that worked best for me, and i will post some ideas for your team.
my team has a 105 win streak on Super Battle Subway currently:
Hippowdon @ Rocky Helmet
Trait: Sand Stream
Impish Nature (+Def, -SAtk)
EVs: 252 Def/ 212 HP/ 44 Atk
- Earthquake
- Stealth Rock
- Slack Off
- Yawn
Sets weather, Slack Off + Rocky Helmet kills physical attackers especially against CPU opponents. Yawn forces switch or Sleeps the foe, EQuake is STAB and its friggin EQuake.
Gastrodon @ Life Orb
Trait: Storm Drain
Modest Nature (+SAtk, -Atk)
EVs: 252 HP/ 144 SAtk/ 112 SDef
- Scald
- Stockpile
- Recover
- Ice Beam
After 2-3 Stockpiles this thing is baws, and with Recover is a viable Tank. Storm Drain draws in attacks aimed at my next member and boosts SAtk to insane levels with Life Orb.
Heatran @ Leftovers
Trait: Flash Fire
Timid Nature (+Spd, -Atk)
EVs: 252 Spd/ 252 SAtk/ 4 SDef
- Fire Blast
- Torment
- Substitute
- Earth Power
TormenTran set. since most pokemon only have one move to deal with Heatran, Torment and Substitute screws them over, giving Heatran a free turn in between Subs to attack without fear of getting nailed by a supereffective shot.
so that being said as an example you could always use for a basis to find some synergy, here's my suggestions:
Latios @ Expert Belt
Trait: Levitate
Timid Nature (+Spd, -Atk)
EVs: 252 Spd/ 212 SAtk/ 44 HP
- Draco Meteor
- Psyshock
- Fire Blast
- Roost
Heatran @ Life Orb
Trait: Flash Fire
Modest Nature (+SAtk, -Atk)
EVs: 252 SAtk/ 252 Spd/ 4 HP
- Stealth Rock
- Earth Power
- Flash Cannon
- Flamethrower
Gallade @ Choice Scarf
Trait: Steadfast
Adamant Nature (+Atk, -SAtk)
EVs: 252 Atk/ 144 HP/ 112 Spd
- Leaf Blade
- Close Combat
- Psycho Cut
- X-Scissor
that's my input. the movesets should be fairly clear cut.
hope this helps :)