Help me with my team please!

Okay, so this is supposed to be a competitive team, but I'm always constantly losing. I know I should know how to set up my team. Okay, so the rules are always a double battle with no restrictions. I have Pokemon Black for those who are asking.

So these are my leads:

Krookodile and Emolga
1.Outrage 1.Discharge
2.Earthquake 2.U-Turn
3.Foul Play 3.Thunder
4.Dig 4.Acrobatics.

The deal with these two is the Earthquake/Discharge combo. Yeah. It's okay, but it needs help.

My sweepers:

Samurott and Serperior
1.Megahorn 1.Frenzy Plant
2.Hydro Cannon 2.Leaf Storm
3.False Swipe 3.Wring Out
4.Water Pledge 4.Grass Plegde

My powerhouses:

Reshiram and Mienshao
1.Blue Flare 1.Stone Edge
2.Fusion Flare 2.Hi Jump Kick
3.Outrage 3.Aura Sphere
4.Draco Meteor 4.Poison Jab


So. I'm thinking of replacing the Samurott/ Serperior combo and replacing it with something like Absol/ Gothitelle. Please tell me if i should change any move sets. Oh, here are the natures of the pokemon. None of them have any EV's but Reshiram and Mienshao.

Krookodile: Impish
Emolga: Lax
Samurott: Quirky
Serperior: Quiet
Reshiram: Rash (+252 Sp. Atk)
Mienshao: Hasty (+252 Attack, +252 Speed, +4 Sp. Atk.)

Okay, first off, post it like this for us to evaluate easier.

Species:
Item:
Nature:
EV Spread:
Moves:

Also keep the Pokemon separate.

Before I evaluate, though, Reshirwm is an uber, doesn't help. It would help to have all your Pokemon properly EVed, though, for one.

Razor Shell will be stronger because Sammurott has better Attack not Special Attack. Unless you EV trained it to be a Mix Sweeper

your team is pretty good

for samurott instead of hydro pump i would put surf or waterfall and you shuld give serperior leech seed so it can heal your pokemon a little bit a little bit can go a far way other than that it looks fine but in my opinion emolga sucks im not saying its horrible but emolgasnever work out for me

i agree with everyone, and i believe either the samurott/serperior combo and the absol/gothitelle combo could work, however, absol and gothitelle are both weak to bug, so you could teach absol aerial ace for fighting types and bug types

but overall your team is good, just get rid of samurott's false swipe for waterfall, and then hydro pump for something else. then serperior get rid of wring out for coil.

overall, other than those things, your good

Thanks everyone! I have another team for Diamond/Pearl, so I'll upload that soon