Rate my team

[Dummy]

I'm about to battle my friend and I need people to rate my team(This is a double battle and I don't have acess to LG Pokemon.)

Slaking Lvl 50+ Choice Band
Sweeper
Hyper Beam
Return
Flail
Substitute

Alakazam@Lefties
Sweeper
Phychic
Skill Swap
Fire Punch
Ice Punch

Blastiose Depends what I want to be =Lefties and Petaya Berry
Sweeper+Tanker
Surf
Earthquake
Ice Beam
Hidden Power Fighting

Ninjask@Lefties
Annoyer
Protect
Swords Dance
Fury Cutter
Baton Pass

So, What do you think?
By the way,His team is two Magneton,Gardivior,Venusaur

 

[ZNtelle]

You might want to stop for a sec and reconsider even attempting this if you're not going to take note of natures and maybe EVs. It's for your own good.

And Choice Banded Substitute? On Slaking of all things? That's kinda bad.