need help dark pokemon team

These are the guys I want to use for my dark team. I just want a little input on what works and what doesn't.Cause i want to start a new dark pokemon clan Xd so if i wan tto be the leader i need a strong team so please help me XD



Absol
Ability: Super Luck
EV: Attack, Speed
Moves:

Perish Song
Night Slash
Psycho Cut
Sucker Punch


Drapion
Ability: Sniper
EV: Attack, Defense
Moves:

Toxic Spikes
Aerial Ace
Night Slash
Cross Poison


Umbreon
Ability: Synchronize
EV: Defense, Sp. Defense
Moves:

Moonlight
Baton Pass
Curse
Payback


Weavile
Ability: Pressure
EV: Attack, Speed
Moves:

Ice Punch
Night Slash
Shadow Claw
brick break


Crawdaunt
Ability: Hyper Cutter
EV: Attack, Defense
Moves:

Crabhammer
Night Slash
Aerial Ace
Swords Dance


Honchkrow
Ability: Super Luck
EV: Attack, HP
Moves:

Sucker Punch
Night Slash
Drill Peck
thunder wave


Houndoom
Ability: Flash Fire
EV: Sp. Attack, Speed
Moves:

Flamethrower
Nasty Plot
hidden power (psychic)
Dark Pulse

What natures do your Pokemon have? What are their items?

Absol: It's too frail to use Perish Song, and your opponent can always switch to escape its effects. Superpower should go in the last slot. Give it a Focus Sash and make it Adamant.

Drapion: An interesting one. I think that a Swords Dance set would be good:
-Swords Dance
-Crunch
-Earthquake
-Aqua Tail
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Leftovers/Life Orb
Ability: Sniper

Umbreon: That set could work, but you're doing the EVs wrong. It should be 252 HP/4 Atk/252 SDef. Give it Leftovers.

Weavile: Shadow Claw is redundant with Night Slash. Ice Shard can go in its place to pick off weakened opponents. It's screwed badly by Scizor, though, so I'd replace it with Spiritomb, thanks to its lack of weaknesses:
-Rest
-Sleep Talk
-Calm Mind
-Dark Pulse
Nature: Bold
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers

Crawdaunt: Move its Defense EVs into Speed. Replace Swords Dance with Dragon Dance and make its nature Adamant or Jolly. Crabhammer is a bit shaky on accuracy, so you can go with Waterfall if you want. Give it Leftovers or Life Orb.

Honchkrow: It's screwed badly by Steels, so replacing Night Slash and Thunder Wave with Heat Wave and Superpower helps it deal with them. Make its nature Naughty or Naive and make its EVs 252 Atk/4 SAtk/252 Spe. Give it Life Orb.

Houndoom: Change its Hidden Power type to Grass so it can deal with bulky Waters. Make it Timid and give it the Life Orb.