Here is a team that I am planning to use in the online mode of PBR double battles. That means I can only use four pokemon per battle. The idea is simple: set up trickroom and sweep with relicanth and clamperl. BTW if it says anything, this team has defeated all the master battles, except the very last one (last battle not serie), because I had to use deoxys. Stupid AI kept double hitting solrock. Makes me wonder if the programmers knew that trickroom would make this battle too easy.
The leads:
_________________________
Solrock ________________________________Shedinja
Adamant @ focussash ___________________Adamant @ focussash
max att and hp _________________________max att and speed
Explosion ______________________________protect
Trickroom ______________________________swordsdance
Protect/rockslide ________________________X-scizor
stealthrocks ____________________________Shadowsneak
I always lead with these two, unless I am facing a wheather team (you see the opponents pokemon before hand, so I know when to leave him). Shedinja draws in attacks so solrock has a greater chance of pulling of trickroom, due to not getting "ganged up on". I usually use protect first turn with shedinja, and swordsdance next when solrock uses explosion. I guess with the focusshash I could use swordsdance first turn too, but if both pokemon hit me, when expecting a focussash, I am screwed. I use shadowsneak if I suspect a focussash on the explosion turn. Further more, shedinja is also immune to surf and EQ, wich my two main sweepers carry.
If everything goes right, than I have after the second turn a trickroom up, 1 or 2 SD's on sheddy and 2 fainted pokemon on the opposition.
The nature of solrock is no -speed due to breeding problems, and I trained shedinja before I though of trickroom. Besides sheddy is still outrun by his biggest threats so he can kill.
The rest:
Clamperl
Quiet @ deepseathooth
Max sp.att/hp
Surf
Brine
Protect
Icebeam
This thing hits hard. Very hard. I use brine when I want to hit only one pokemon (most partners don't like eating surfs from this thing.). But sheddy is immune to surf, so when he is still out, I can just use it. I don't have hidden-power because I am lazy. Protect works better BTW, it allows him to survive relicanth EQ's, and when I know the opponent tries to take out just clamperl it gives me a free turn.
Relicanth
Brave @ widelense
max att the rest in def, sp.def and hp. So it reaches 300 def and 200 sp.def.
Rock-head
Headsmash
EQ
Waterfall
Doubleedge
Headsmash hits hard, and nothing likes to eat it. Especially when clamperls surf/brine has weakened them. The remaining attacks are for coverage. Wide-lense because missing has screwed me so much, and waterfall because he was bred in emerald.
Scizor
max att/def
Adamant@ chestoberry
SD
QA
Ironhead
X-scizor
Scizor without speed EV's is slow. So he works well. Chestoberry is against sleep spammers on wi-fi since there is no sleep clause. If darkrai tries to darkvoid me, he is going to get it. But scizor is mainly a reserve. So he's not that important.
Pikachu
quiet@ lichtball
252 att/sp.att
Volt-tackle
thunderbolt/discharge (is discharge worth the risk?)
Grass-knot
protect.
The leads:


Solrock ________________________________Shedinja
Adamant @ focussash ___________________Adamant @ focussash
max att and hp _________________________max att and speed
Explosion ______________________________protect
Trickroom ______________________________swordsdance
Protect/rockslide ________________________X-scizor
stealthrocks ____________________________Shadowsneak
I always lead with these two, unless I am facing a wheather team (you see the opponents pokemon before hand, so I know when to leave him). Shedinja draws in attacks so solrock has a greater chance of pulling of trickroom, due to not getting "ganged up on". I usually use protect first turn with shedinja, and swordsdance next when solrock uses explosion. I guess with the focusshash I could use swordsdance first turn too, but if both pokemon hit me, when expecting a focussash, I am screwed. I use shadowsneak if I suspect a focussash on the explosion turn. Further more, shedinja is also immune to surf and EQ, wich my two main sweepers carry.
If everything goes right, than I have after the second turn a trickroom up, 1 or 2 SD's on sheddy and 2 fainted pokemon on the opposition.
The nature of solrock is no -speed due to breeding problems, and I trained shedinja before I though of trickroom. Besides sheddy is still outrun by his biggest threats so he can kill.
The rest:

Clamperl
Quiet @ deepseathooth
Max sp.att/hp
Surf
Brine
Protect
Icebeam
This thing hits hard. Very hard. I use brine when I want to hit only one pokemon (most partners don't like eating surfs from this thing.). But sheddy is immune to surf, so when he is still out, I can just use it. I don't have hidden-power because I am lazy. Protect works better BTW, it allows him to survive relicanth EQ's, and when I know the opponent tries to take out just clamperl it gives me a free turn.

Relicanth
Brave @ widelense
max att the rest in def, sp.def and hp. So it reaches 300 def and 200 sp.def.
Rock-head
Headsmash
EQ
Waterfall
Doubleedge
Headsmash hits hard, and nothing likes to eat it. Especially when clamperls surf/brine has weakened them. The remaining attacks are for coverage. Wide-lense because missing has screwed me so much, and waterfall because he was bred in emerald.

Scizor
max att/def
Adamant@ chestoberry
SD
QA
Ironhead
X-scizor
Scizor without speed EV's is slow. So he works well. Chestoberry is against sleep spammers on wi-fi since there is no sleep clause. If darkrai tries to darkvoid me, he is going to get it. But scizor is mainly a reserve. So he's not that important.
Pikachu
quiet@ lichtball
252 att/sp.att
Volt-tackle
thunderbolt/discharge (is discharge worth the risk?)
Grass-knot
protect.