@ Shell Bell
Nature: Adamant (+attk, -sp.attk.)
- Swords Dance
- Aerial Ace
- Shadow Ball
Simply a Physical Sweeper. You can also make it a Psycical Sweeper with Calm Mind, Flamethrower, Ice Beam, Thunderbolt and a modest nature.
@ Leftovers(Or maybe Focus Band, I can't remember if Gardevoir is that fast)
Nature: Modest (+sp.attk, -attk.)
- Calm Mind
@ Quick Claw, Leftovers
Nature: Jolly (+speed, -sp.attk.)
- Focus Punch/Sky Uppercut
- Leech Seed
I don't really know if Breloom can be an annoyer..
Nature: Brave (+attk, -speed)
- Return/Ice Beam
- Surf/Iron Tail
- Brick Break
I really don't know what to do with Swampert(cause I've never own one). Maybe you can make him a Physical Sweeper, a tank?
Nature: Relaxed (+def, -speed)
- Flamethrower/Heat Wave
- Body Slam
- Rock Slide
Man, I think Magcargo was meant to be some sort of tank..You could erase Body Slam for something stat-raising, but I'm not really sure of what.
Well, that's it. Now, I'm not really good at rating teams, but I just want to help
And yeah, I always get everyone to be physical or psycical sweepers. That's what I uasally use in my teams :P For a sixth mon maybe you could take an electric or flying type?