Tyrachamp Deck

[NeoIdea23]

I am currently using a Tyranitar-Machamp deck. I need help with it.

3x Machop (SF64)
2x Machoke (SF41)
1x Machamp (SF20)
2x Darkrai (MD3)
1x Darkrai LV.X (DP19)
3x Larvitar (SF63)
2x Pupitar (SF47)
1x Tyranitar (SF30)
2x Sneasel (LA120)
2x Weavile (SW40)
1x Sableye (SF48)
1x Claydol (GE)
2x Baltoy (GE)
=23 Pokemon
1x Luxury Ball
1x Team Galactic's Mars
1x Rare Candy
1x Night Maintenance
2x Dusk Ball
2x Poke Radar
2x Professor Oak's Visit
1x Rival
2x Roseanne's Research
2x Technical Machine TS-1
2x Potion
1x Snowpoint Temple
2x Bebe's Search
1x Cynthia's Feelings
=21 Trainer
5x Fighting Energy
7x Dark Energy
3x Special Darkness Energy
=15 Energy

I am hoping to use this at States, but I need help. Please comment.