Rate my VGC Team

hi,im thinking of going ALL THE WAY TO BIRMINGHAM next year to the VGC and would like it if the nice ppl here at pokecommunity would rate my team

Giratina-Shadow force ,aura sphere, Will-o-wisp,draco meteor
EV'S- 252 special defence, 180 defence,rest hp
Metagross-Hammer arm,Psychic,earthquake,Meteor mash
EV'S-EV'S attack 252,hp 252 and 4 dfnce
Tyranitar-Stone edge,payback,Sleep talk,rest
EV'S attack 252,spc atack 252,hp 4
Swampert-Hydro pump,earthquake,Endeavor,Protect
Ev's-all atack and hp
Blissey-Ice beam,toxic,Softboiled,substitute
Ev's-Hp and spc defence 252,4 defence
Salamence-Dragon claw,dragon dance,flamethrower,thunder fang
Ev's-Atacka and s[ecial attack 252,4 hp

dunno about items yet, will get rund to them

looks good. for blissey, i normally run softboiled, toxic, aromatherapy, and seismic toss on it.

if i dont run those moves i use my blissey as a utility, usually putting moves that my party is lacking strengths. try the setup in bold, it is quite good.