Hmm. So neither of you like the Pikachu, huh. I like the Dedenne idea, however I am more of a fan of the Revenge Killers, Glass Cannons, Sweepers, and perhaps a Blissey, or a Cradily for a wall. Recycling the HP too much will not only get annoying for the opponent, but for me. Thundurus might be OK, but I would definitely prefer to use the Wash Rotom. One I thought of might be Electrike/Manectric, they seem to be popular.
@PlatinumDude: I will be using this team on the PSS. Too bad I cant use the Aegislash, however I will need a Steel type and Fighting, which I haven't added yet. And Mega Lucario (Which you get for free) Is also an Uber.
I could get rid of the Mega Charizard, and put in my beautiful Lv. 1 Hawlucha, and a Lv. 10 Magby, or perhaps Litleo. I would train those up. A lot better than Charizard, in my opinion, however it would take up two spaces.
Instead of the Greninja, I could put in a high-defense and Sp. Attack Slowpoke holding Kings Rock, giving me a Psychic type along the way.
The Florges is staying on the team, I don't care. Florges will be on my Alpha Sapphire as well.
Back to the Pikachu, I am willing to take a risk. I am transferring my Emolga, my LEAST favorite Pokemon, to my Pokemon Y. It is a new electric mouse. (Wow, there are so many electric rodents in the game!)
If you don't follow Smogon rules, Aegislash is fine in friendly PSS battles:
-Shadow Ball
-Shadow Sneak
-Flash Cannon/Sacred Sword
-King's Shield
Nature: Quiet
EVs: 244 HP/12 Def/252 SAtk
Item: Leftovers/Weakness Policy
or
-Substitute
-Toxic
-King's Shield
-Shadow Ball/Flash Cannon
Nature: Modest
EVs: 244 HP/12 Def/252 SAtk
Item: Leftovers
or
-Swords Dance
-Shadow Sneak
-Shadow Claw/Iron Head
-Sacred Sword/Head Smash
Nature: Adamant
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb
Despite Hawlucha's high Speed, it's best played as an Unburden attacker, so nothing can outspeed it after the ability activates. You only have one shot to sweep with it, though, as Unburden's Speed boost is removed if Hawlucha switches:
-Substitute
-Swords Dance
-High Jump Kick
-Acrobatics
Nature: Jolly
EVs: 8 HP/252 Atk/248 Spe
Item: Sitrus Berry
Ability: Unburden
I think you mean Slowbro or Slowking, as Slowpoke is their pre-evolved form:
Slowbro:
-Scald
-Psyshock/Fire Blast/Ice Beam/Foul Play
-Thunder Wave/Toxic
-Slack Off
Nature: Bold
EVs: 252 HP/232 Def/24 SDef
Item: Leftovers/Rocky Helmet
Ability: Regenerator
Slowking:
-Scald
-Psyshock/Fire Blast
-Toxic/Thunder Wave/Dragon Tail
-Slack Off
Nature: Calm
EVs: 248 HP/184 Def/76 SDef
Item: Leftovers
Ability: Regenerator
or
-Scald
-Psyshock
-Fire Blast
-Ice Beam/Dragon Tail
Nature: Calm
EVs: 248 HP/180 Def/36 SAtk/44 SDef
Item: Assault Vest
Ability: Regenerator
Magmortar and Pyroar are badly outclassed by other Fire Pokemon. While Magmortar has a good move pool, it's not that fast. Pyroar's move pool is very shallow. Charizard is the better Fire Pokemon to turn to, though only in its Mega Evolved state. Having 2 Mega forms means the opponent will be forced into a guessing game on what form they'll be up against:
-Dragon Dance
-Flare Blitz
-Dragon Claw
-Earthquake/Roost
Nature: Jolly
EVs: 104 HP/220 Atk/184 Spe
Item: Charizardite X
Ability: Blaze
or
-Flare Blitz
-Dragon Claw/Earthquake
-Will-o-Wisp
-Roost
Nature: Careful
EVs: 248 HP/24 Atk/180 SDef/56 Spe
Item: Charizardite X
Ability: Blaze
or
-Swords Dance
-Tailwind
-Flare Blitz
-Outrage
Nature: Adamant
EVs: 40 HP/252 Atk/216 Spe
Item: Charizardite X
Ability: Blaze
or
-Fire Blast/Flamethrower
-Solar Beam
-Focus Blast
-Roost
Nature: Timid/Modest
EVs: 4 Def/252 SAtk/252 Spe
Item: Charizardite Y
or
-Fire Blast/Flamethrower
-Solar Beam/Focus Blast/Earthquake
-Will-o-Wisp
-Roost
Nature: Calm
EVs: 240 HP/76 Def/176 SDef/16 Spe
Item: Charizardite Y
Simply put, all the PIkaclones suck (except for potentially Raichu and Pachirisu in doubles) because of their mediocre base stats in general. Pachirisu and Dedenne are the worst offenders in this regard; Pachirisu has no offensive presence outside of Super Fang and Dedenne's move pool is rather pathetic; its only Fairy STAB, Play Rough, runs off of its bad Attack.
However, if you want to go the Pikachu route, your best bet is using Cosplay Pikachu (in its Belle form, as it has the best special move out of the five) with a Light Ball, but you can only use it in OR/AS:
-Thunderbolt/Wild Charge
-Icicle Crash
-Knock Off
-Volt Switch
Nature: Naive
EVs: 4 Atk/252 SAtk/252 Spe or 252 Atk/4 SAtk/252 Spe
Item: Light Ball
Regarding Florges, is outclassed by other Fairy Pokemon like Sylveon and Clefable, as the former has more offensive presence in Pixilate Hyper Voice, while Clefable has a wider move pool to take advantage of. Florges' abilities are also useless in singles. However, if you insist:
-Wish
-Protect
-Moonblast
-Aromatherapy
Nature: Bold/Calm
EVs: 252 HP/232 Def/24 SDef
Item: Leftovers
With Charizard on the team, Rapid Spin or Defog support is pretty much necessary. Starmie or Mandibuzz can do that for you (those are examples; too lazy to think of any more):
Starmie:
-Hydro Pump
-Psyshock/Ice Beam
-Thunderbolt/Hidden Power (Fire)
-Rapid Spin
Nature: Timid
EVs: 252 SAtk/4 SDef/252 Spe
Item: Life Orb
Ability: Natural Cure/Analytic
or
-Scald
-Psyshock/Reflect Type
-Rapid Spin
-Recover
Nature: Timid
EVs: 248 HP/16 Def/240 Spe
Item: Leftovers
Ability: Natural Cure
Mandibuzz:
-Foul Play
-Defog
-Roost
-Taunt/Whirlwind
Nature: Bold
EVs: 248 HP/136 Def/108 SDef/16 Spe
Item: Leftovers
Ability: Overcoat