Rate and comment on my pokemon soul silver team?

[Monoxidechild]

Question say it all

Hippowdon Lvl100
Impish Nature
EVs: 252HP/168Def/88SpD
Held Item: Leftovers
Earthquake
Slack Off
Stealth Rock
Roar

Umbreon Lvl100
Sassy Nature
IVs: 0Spe
EVs: 252HP/200Atk/56SpD
Held Item: Leftovers
Curse
Protect
Wish
Payback

Dragonite Lvl100
Adamant Nature
EVs: 252HP/52Atk/204Spe
Held Item: Leftovers
Earthquake
Rockslide
Dragon Claw
Dragon Dance

Spiritomb Lvl100
Adamant Nature
EVs: 252HP/252/Atk/4Def
Held item: Choice Band
Shadow Sneak
Sucker Punch
Will-o-Wisp
Trick

Blissey Lvl100
Bold Nature
EVs: 252HP/252Def /4Spe
Held Item: Leftovers
Thunder Wave
Aromatherapy
Softboiled
Seismic Toss

Milotic Lvl100
Bold Nature
EVs: 252 HP/184 Def/56SpA/16 Spe
Held Item: Leftovers
Ice Beam
Light Screen
Recover
Surf