Please rate my Sinnoh-themed Team

[Alfieri]

I want to keep Infernape and please keep it Sinnoh pokemon only. Only new pokemon introduced in Gen IV (evolutions like Roserade and Electivire can be included too).
I don't care about tiers, this is just a team to battle 6v6 Singles online in X&Y, not for Smogon rules and not for VGC Doubles. Just plain Online X&Y Singles.

Infernape @ Choice Band
Iron Fist | Jolly Nature
6 HP/252 Attack/252 Speed
- Flare Blitz
- Close Combat
- U-Turn
- Thunder Punch
Infernape is pretty much the wallbreaker of my team. Just a straight powerhouse.

Floatzel @ Life Orb
Swift Swim | Jolly Nature
6 HP/252 Attack/252 Speed
- Waterfall
- Ice Punch
- Crunch
- Aqua Jet
Floatzel is more of my versatile physical sweeper thanks to having a Life Orb instead of being choiced. I was thinking maybe replacing it with Gastrodon or Rotom Wash but then I'll have too few physical attackers.

Roserade @ Black Sludge
Natural Cure | Calm Nature
252 HP/102 Special Attack/156 Special Defense
- Toxic Spikes
- Giga Drain
- Hidden Power Rock
- Synthesis
Roserade is my entry hazard user, setting up Toxic Spikes and then gaining health back with Giga Drain, Synthesis, and Black Sludge. It can take plenty of special attacks and I also gave it HP Rock in case of any fire or flying types.

Magnezone @ Light Clay
Magnet Pull | Calm Nature
204 HP/100 Defense/206 Special Defense
- Volt Switch
- Hidden Power Ice
- Light Screen
- Reflect
Magnezone sets up dual screens for extra defenses for my team. Volt Switch in case I need to get away quick and HP Ice to cover any Dragons or Ground types.

Togekiss @ Rocky Helmet
Serene Grace | Calm Nature
200 HP/200 Defense/110 Special Defense
- Air Slash
- Dazzling Gleam
- Roost
- Thunder Wave
Togekiss is my special tank. She can take plenty of special attacks and cripple opponents with Thunder Wave in case Roserade isn't able to land Toxic Spikes or if Toxic Spikes is rendered useless by a Poison type. I gave her the Rocky Helmet just for fun, y'know in case the opponent figures out special attacks won't work, tries a physical attack and gets hurt lol.

Dusknoir @ Leftovers
Pressure | Adamant Nature
252 HP/248 Defense/10 Special Defense
- Will-O-Wisp
- Shadow Sneak
- Fire Punch
- Earthquake
Dusknoir is the beefy staller. In case a Pokemon renders Toxic Spikes useless, I can cause a burn and just tanks hits and waste their PP with Pressure until they faint. Dusknoir has been pretty helpful and was the cause of many of my victories when all of my other pokemon fainted.

Anyways, thank you for reading all of this information. If you have any suggestions on better EV Spreads, moves, or even just a better replacement, please feel free to respond.
However if you do suggest different EV Spreads, please tell me with detailed calculations about how it would be more effective. :)

 

[PlatinumDude]

Infernape is a better wall breaker when it goes mixed:
-Fire Blast/Flare Blitz
-Close Combat
-Thunder Punch
-Mach Punch/Hidden Power (Ice)/Grass Knot
Nature: Hasty/Naive
EVs: 168 Atk/88 SAtk/252 Spe
Item: Life Orb
Ability: Iron Fist

Floatzel's frailty is its main downfall. Wash Rotom and Gastrodon are better choices:

Wash Rotom:
-Volt Switch
-Hydro Pump
-Will-o-Wisp
-Pain Split/Rest
Nature: Bold/Calm
EVs: 248 HP/216 Def/44 Spe (Bold) or 248 HP/216 SDef/44 Spe (Calm)
Item: Leftovers/Chesto Berry

or
-Volt Switch
-Hydro Pump
-Will-o-Wisp/Thunderbolt
-Trick
Nature: Modest
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Scarf

Gastrodon:
-Scald
-Earthquake/Earth Power
-Ice Beam/Toxic
-Recover
Nature: Relaxed/Bold
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Storm Drain

Roserade: Regular Spikes is better on this team because you may opt to put Toxic on Gastrodon:
-Spikes
-Leaf Storm
-Hidden Power (Fire)
-Sleep Powder
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb
Ability: Technician

Magnezone's main niche is a Steel eliminator. Dual screening takes away from that niche and there are other Pokemon who perform that role better, like Uxie:
-Thunderbolt
-Volt Switch
-Flash Cannon
-Hidden Power (Fire)
Nature: Modest
EVs: 172 HP/252 SAtk/84 Spe
Item: Choice Specs
Ability: Magnet Pull

What's the deal with Togekiss' EV spread? What KOs does it avoid? If it doesn't avoid anything in particular, use 248 HP/8 Def/252 SDef with Calm or 248 HP/252 Def/8 SDef with Bold.

Despite Dusknoir's high defenses, it's even overshadowed by its pre-evolution, who sports more bulk with Eviolite. Its STABs are also weak. Your current Dusknoir set also lacks Pain Split; though it's unreliable, it's Dusknoir's only form of recovery. Gliscor makes an even more annoying staller than Dusknoir because of Poison Heal recovering more HP than Leftovers:
-Earthquake
-Substitute
-Toxic
-Protect
Nature: Impish
EVs: 244 HP/100 Def/160 Spe
Item: Toxic Orb
Ability: Poison Heal

 

[Alfieri]

I completely forgot about Gliscor! That's a great pokemon to use.
And what Item should I give Togekiss for the EV Spread you suggested?

 

[Zeffy]

I completely forgot about Gliscor! That's a great pokemon to use.
And what Item should I give Togekiss for the EV Spread you suggested?

Leftovers is the item you'd want to use.

Also, if you're looking for more physical attackers, there's Garchomp, Staraptor, Lucario, or Mamoswine (which can also help set up Stealth Rock).

 

[Alfieri]

Leftovers is the item you'd want to use.

Also, if you're looking for more physical attackers, there's Garchomp, Staraptor, Lucario, or Mamoswine (which can also help set up Stealth Rock).

Yeah, I replaced Magnezone for Mega Lucario 'cause I had an overabundance of special attackers and a steel-trapper isn't something I really need.