Espeon's only viable role is a Dual Screener. It's outclassed by other Psychic Pokemon like Alakazam, Speed Deoxys, Mega Gardevoir and
[email protected] because they have better coverage options:
-Reflect
-Light Screen
-Yawn
-Psychic/Psyshock/Baton Pass
Nature: Timid
EVs: 252 HP/4 Def/252 Spe
Item: Light Clay
Ability: Magic Bounce
I don't get what Dragonite's EVs achieve here. Just use max Attack/max Speed so that Dragonite can hit hard even without setting up. Also, it's currently walled badly by Steel Pokemon:
-Dragon Dance
-Outrage/Dragon Claw
-Earthquake
-Extreme Speed
Nature: Adamant
EVs: 252 Atk/4 Def/252 Spe
Item: Lum Berry
Ability: Multiscale
or
-Dragon Claw
-Earthquake
-Extreme Speed
-Roost
Nature: Adamant
EVs: 216 HP/44 Atk/228 SDef
Item: Leftovers
Ability: Multiscale
Again, what's with Greninja's EV spread? It's very frail and not even defensive investment can save it. Use 252 SAtk/4 SDef/252 Spe, aka the standard special sweeper spread. U-turn doesn't really let Greninja accomplish much, since scouting can be done with team preview:
-Hydro Pump
-Ice Beam
-Extrasensory
-Dark Pulse/Hidden Power (Fire/Grass)/Grass Knot/Spikes
Nature: Timid
EVs: 252 SAtk/4 SDef/252 Spe
Item: Life Orb/Focus Sash
Ability: Protean
The EVs and nature of Greninja also apply to Volcarona. Also, Life Orb/Lum Berry > Rocky Helmet; Volcarona can't really abuse the item well.
Sylveon needs Hyper Voice over Echoed Voice; that move is a tutor move from B2/W2:
-Wish
-Protect
-Hyper Voice
-Heal Bell/Calm Mind
Nature: Bold
EVs: 252 HP/216 Def/40 SDef
Item: Leftovers
Ability: Pixilate
Change Charizard's EVs to 4 Def/252 SAtk/252 Spe. And I also noticed you lack strong physical attackers, so you can consider Charizard X:
-Dragon Dance
-Flare Blitz/Earthquake
-Dragon Claw
-Roost
Nature: Adamant
EVs: 248 HP/152 Atk/108 Spe
Item: Charizardite X
Ability: Blaze
or
-Dragon Dance
-Flare Blitz/Fire Punch
-Outrage/Dragon Claw
-Earthquake/Roost
Nature: Adamant/Jolly
EVs: 252 Atk/4 Def/252 Spe
Item: Charizardite X
Ability: Blaze
or
-Fire Punch/Earthquake
-Dragon Claw
-Will-o-Wisp
-Roost
Nature: Careful
EVs: 248 HP/140 SDef/120 Spe
Item: Charizardite X
Ability: Blaze
Let me ask you this: where/how did you come up with your EV spreads? To me, they're just all over the place.