If someone could suggest a Pokemon to replace a member of this team, that would be helpful. If you need more details, don't hesitate to ask. I am currently playing platinum. The Pokemon below are my current team members.
Dusknoir/Ghost/Pressure/None
(average stats, not exact)
200-294/184-328/247-405/121-251/247-405/85-207
Confuse Ray
Shadow Punch
Payback
Future Sight
Dusknoir is my "wall" or "sheild" of my group. He has some of the highest defense and since he is a ghost type, he has some immunities which helps. He isn't the strongest puncher of the group, but he can let me heal the rest of my team up. He is ment to cover Houndoom from Fighting+Ground and Scizor from Ground.
Garchomp/Dragon-Ground/Sand Veil/None
(average stats, not exact)
290-384/157-295/184-328/175-317/229-383/157-295
Dragon Claw
Dig
Crunch
Dragon Rush
Garchomp is the "Sweeper" of my team. He can really pack a punch and is pretty fast, too. His defense is on the weaker side but his other stats make up for it. He can cover for Scizor and Jolteon pretty well. If I send him out, my plan is to just knock as many pokemon as I can out.
Scizor/Steel-Bug/Swarm/None
(average stats, not exact)
250-344/238-394/184-328/103-229/148-284/121-251
X-Scissor
Night Slash
False Swipe
Iron Head
Scizor is a mix of defense and offense. Of course, he is a steel type so he has generally high defense so I send him out as more of a last resort pokemon. His job is to stay alive and fight but I can also heal my other pokemon with him. Used as a balance, he really can't cover for many pokemon in my party.
Gyarados/Water-Flying/Intimidate/None
(average stats, not exact)
300-394/255-349/163-257/125-219/205-299/167-261
Ice Fang
Aqua Tail
Hydro Pump
Hyper Beam
Gyarados is another "Sweeper" that I have, as the fact he can also pack a punch. Although generally slower than Garchomp, he can hit with more power. Normally one of the first I send out, and one of the first I choose to heal. He can cover for Jolteon and Garchomp.
Jolteon/Electric/Volt Absorb/None
(average stats, not exact)
240-334/121-251/112-240/202-350/175-317/238-394
Thunder Fang
Last Resort
Thunder Wave
Thunder
Jolteon is used more as a status type pokemon. He will hit first most of the time, and paralyze the enemy pokemon. He has lower attack and defense than the rest of my party but no one else can paralyze other pokemon or even make them sleep etc. He will be great when fighting Flying and Steel types.
Houndoom/Dark-Fire/Flash Fire/None
(average stats, not exact)
260-354/166-306/94-218/202-350/148-284/175-317
Fire Fang
Faint Attack
Flamethrower
Crunch
Houndoom is really a "Sweeper" in my party, even though he is on the weaker side. He has high special attack, attack, and defense, which I find a great balance in when your looking for a "Sweeper". He is good against a lot of types including Grass, Ice, Bug, Steel, Psychic and Ghost. He can cover for Dusknoir,Garchomp and Gyarados.