Hi guys, I'd like you to rate my first team.
I'm new in the metagame so I think this isn't going to be a very powerful team, but I searched a lot of informations on the web and I think it's a quite good team.

Umbreon (Physical and Special wall)
Abilityynchronise (Sincronismo)
Itemhed shell (Disfoguscio)
Nature:Impish (Scaltra)
Evs: 252 Def, 252 SpDef, 4 Hp
Moveset:
Confuse Ray
Moonlight
Protect/Curse
Substitute/Last Resort/Faint Attack

Metagross (Physical Sweeper)
Ability: Clear body (Corpochiaro)
Item: Choice Band/Choice Scarf
Nature: Naughty (Birbona)
Evs: 252 Atk, 252 Speed, 4 Def
Moveset:
Meteor Mash
Bullet Punch
Magnet Rise
Zen Headbutt

Blissey (Cleric/Annoyer):
Ability:Natural Cure (Alternacura)
Item: Leftovers (Avanzi)
Nature:Bold (Sicura)
Evs: 252 Def, 252 SpDef, 4 Hp
Moveset:
Toxic
Sing
Healing Wish
Softboiled

Tyranitar (Physical Sweeper)
Ability: Sandstream (Sabbiafiume)
Item: Wide Lens (Grande Lente)
Nature: Jolly (Allegra)
Evs: 252 Atk, 252 Speed, 4 Hp
Moveset:
Earthquake
Crunch
Dragon Dance
Stone Edge

Starmie (Special Sweeper)
Ability: Natural Cure (Alternacura)
Item: Choice Specs (Lentiscelta)
Nature:Impish (Scaltra)
Evs: 252 SpAtk, 252 Speed, 4 SpDef
Moveset:
Pshychic
Ice Beam
Thunderbolt
Surf

Dragonite (Mixed Sweeper)
Ability: Inner Focus (Fuocodentro)
Item: Life Orb (Assorbisfera)
Nature: Mild (Mite)
Evs: 56 Atk, 252 Sp.Atk, 200 Speed
Moveset:
Draco Meteor
Flamethrower
Earthquake/Thunderbolt
Outrage/Thunderbolt

Thanks

Great team there DarkTyranitar!

Unfortunately, competitive team help threads don't belong in Fourth Gen but best belong in the Battle Center.

Good luck with your team and happy battling! C: