Well, seeing how I am on the computer all the time, my sister asked my to do this for her. Please note that I didn't pick 'The Pixie Team', that was my sister's idea. I really think she is just too lazy to do this herself and pulling my leg, but I don't really care. I still love her anyways. Lets get started!!
Carbink @ Light Clay
Ability: Clear Body
Nature: Relaxed
EVs: 252 Def, 252 SDef, 4 Hp
-Stealth Rock
-Reflect
-Light Screen
-Trick Room
At first, I though it would be a horrible Pokémon to use. Only it's Def and SDef are good. When I saw it's moveset, I realized it can be a really good Wall as well as a Setter. The EVs are to make sure Carbink survives moves such as Bullet Punch or Hydro Pump. Trick Room is to be used first, unless the foe's Pokémon is slower, then it is used last. Trick Room is more for the other Pokémon rather than itself. Reflect and Light Screen raises the team's Def and SDef, and with Light Clay, it lasts for 8 turns. Stealth Rock is set to damage the foe's team. Plain and simple as that.
Note (Since I don't know all the 'roles' of Pokémon, I'm gonna use what makes more sense to me. However I wish that you will mostly understand and if you have any questions or a link, please PM me)
Gardevoir @ Expert Belt
Ability: Trace
Nature: Calm
EVs: 252 SAtk, 252 Spd, 4 SDef
-Moonblast
-Thunder Wave
-Psychic
-Flamethrower/Thunderbolt/Energy Ball
Here is my Gardevoir and she is actually really good, especially with Protean Greninja. Thunder Wave lower your foe's Speed. Psychic and Moonblast are both used for coverage and STAB. With last move, you have several choices. Flamethrower are for the bulky Steel types who can easily crush Gardevoir as well as Ice and Grass type Pokémon. Thunderbolt are for Flying and Water types and Energy Ball is great against Ground, Rock, and Water types. I like to change the moves of Gardevoir to make Gardevoir more unpredictable.
Azumarill @ Leftovers/Sitrus Berry
Ability: Huge Power
Nature: Brave
EVs: 252 Atk, 252 Hp, 4 SDef
-Super Power
-Waterfall
-Play Rough
-Belly Drum
An actual force to be cautious of and my proud Atk Sweeper. With this team, I use her right after Carbink, while Trick Room is still in affect. That way, I (mostly) out speed my foe. Belly Drum maxes out its Atk, and gets health back with the Leftovers/Sitrus Berry. Waterfall and Play Rough gives STAB and coverage, even when it's not super effective, it can still hurt. Super Power is for the great Steel types, who can easily take out this team. But with Trick Room+Belly Drum+Super Effectiveness, she has really good chance defeating them.
Togekiss @ King's Rock
Ability: Serene Grace
Nature: Timid
EVs: 252 Def, 252 Spd, 4 Hp
-Thunder Wave
-Air Slash
-Extreme Speed
-Aura Sphere
Is there a explanation really needed here? Para-flinch and priority move with an attack that can take down Steel, Ground, and Rock types.
Sylveon @Rocky Helmet
Ability: Cute Charm
Nature: Calm
EVs: 252 Hp, 252 SDef, 4 SAtk
-Moonblast
-Wish
-Protect
-Shadow Ball
Although Florges is better, I had gotten a Shiny, Lv 1, 6 IV breed Eevee over a trade, so I wanted to use her. She is more used as a Healer to her team and herself, as well as a SAtker. I'm basically abusing her high Hp and SDef stats to make her as annoying as I can make her. She is slow, so I use her when my team needs healing, or in a pinch, herself. That's why Protect and Wish are two of her moves. In case she happens to be the last Pokémon left standing (I don't think Carbink will survive very long anyways), Moonblast and Shadow Ball are there. Moonblast for STAB and Shadow Ball is for coverage.
Mawile @ Mawilenite
Ability: Hyper Cutter/Huge Power
Nature: Careful
EVs: 252 Atk, 252 SDef, 4 Def
-Sucker Punch
-Iron Head
-Play Rough
-Brick Break
The only one in my team who can basically take out Mega Gengar. She can either Sucker Punch him to make her annoying or kill it in one sweep with Iron Head. Sucker Punch is a priority move while Iron Head is for STAB and other Fairy types. Play Rough is for STAB and Brick Break for the Steel types.
My team in a neater format:
Carbink @ Light Clay
Ability: Clear Body
Nature: Relaxed
EVs: 252 Def, 252 SDef, 4 Hp
-Stealth Rock
-Reflect
-Light Screen
-Trick Room
Gardevoir @ Expert Belt
Ability: Trace
Nature: Calm
EVs: 252 SAtk, 252 Spd, 4 SDef
-Moonblast
-Thunder Wave
-Psychic
-Flamethrower/Thunderbolt/Energy Ball
Azumarill @ Leftovers/Sitrus Berry
Ability: Huge Power
Nature: Brave
EVs: 252 Atk, 252 Hp, 4 SDef
-Super Power
-Waterfall
-Play Rough
-Belly Drum
Togekiss @ King's Rock
Ability: Serene Grace
Nature: Timid
EVs: 252 Def, 252 Spd, 4 Hp
-Thunder Wave
-Air Slash
-Extreme Speed
-Aura Sphere
Sylveon @Rocky Helmet
Ability: Cute Charm
Nature: Calm
EVs: 252 Hp, 252 SDef, 4 SAtk
-Moonblast
-Wish
-Protect
-Shadow Ball
Mawile @ Mawilenite
Ability: Hyper Cutter/Huge Power
Nature: Careful
EVs: 252 Atk, 252 SDef, 4 Def
-Sucker Punch
-Iron Head
-Play Rough
-Brick Break
I accept all suggestions!!!!