First X/Y Team Build ^^;;

[Sevynn]

Hey everyone! Just looking for words of wisdom and guidance on my team and the formation of it. I'm definitely still a novice when it comes to competitive battling so please go easy on me. Before X/Y I never really fully got into the competitive scene but I do want to give it a try. The team I currently have :

Charizard
Charizardite Y / Adamant / Blaze
Heat Wave
Flamethrower
Rock Slide
Fly

Venusaur
Miracle Seed / Naughty / Overgrow
Venoshock
Sleep Powder
Cut
Petal Blizzard

Blastoise
No Item / Bashful / Torrent
Flash Cannon
Hydro Pump
Scald
Ice Beam

Jolteon
Magnet / Modest / Volt Absorb
Thunder
Volt Switch
Thunderbolt
Quick Attack

Lucario
Expert Belt / Hasty / Steadfast
Flash Cannon
Aura Sphere
Quick Guard
Extreme Speed

Scizor
Metal Coat / Calm / Technician
X-Scissor
Night Slash
Iron Head
Air Slash

(Only just evolved my Scyther into Scizor, I've been suggested to IV breed Scizor next ^-^)

Okay so...I haven't really done much to my pokemon's moveset's aside from Jolteon having Volt Switch and Blastoise and Lucario having Flash Cannon. I'm not sure what movesets would be feasible for them, I like to be as versatile as possible. I was thinking if I needed to opt out some of the pokemon I have in my team for other pokemon who would best cover weaknesses etc, but like I've said this is my first team build so any help would be very helpful ;w; .

 

[PlatinumDude]

EVs would be preferred.

An Adamant nature wastes away Charizard Y's massive Special Attack. If it wants to use Special moves, it has to use a Timid nature or a mixed set:
-Fire Blast
-Solar Beam
-Focus Blast
-Dragon Pulse/Roost
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Charizardite Y

or
-Flare Blitz
-Fire Blast/Overheat
-Brick Break/Focus Blast
-Hidden Power (Ice)/Earthquake
Nature: Naughty/Naive/Lonely/Hasty
EVs: 252 Atk/4 SAtk/252 Spe
Item: Charizardite Y

Since the Sun that Charizard Y brings may not benefit the team, (like not taking advantage of regular Venusaur's Chlorophyll ability) you might as well use Charizard X:
-Dragon Dance
-Flare Blitz
-Dragon Claw/Outrage
-Earthquake/Dragon Claw/Roost
Nature: Adamant/Jolly
EVs: 4 Def/252 Atk/252 Spe
Item: Charizardite X

Blastoise is only good in its Mega form, IMO. Venusaur is only good either with Chlorophyll, or its Mega form. Since you can only have 1 Mega Evolution per battle, replacing them may be a better idea. Ferrothorn, Chesnaught, Gourgeist (Super Size) and Trevenant are decent Grass Pokemon to use, because of their good bulk, while Greninja fills in the Water slot, because it hits harder and faster than Blastoise:

Ferrothorn:
-Spikes/Stealth Rock
-Leech Seed
-Power Whip/Protect
-Gyro Ball/Thunder Wave
Nature: Relaxed
EVs: 252 HP/208 Def/48 SDef
Item: Leftovers/Shed Shell
Ability: Iron Barbs

Chesnaught:
-Spikes
-Synthesis
-Hammer Arm
-Stone Edge/Seed Bomb/Roar/Leech Seed
Nature: Impish
EVs: 252 HP/252 Def/4 Spe
Item: Leftovers
Ability: Bulletproof

Super Size Gourgeist:
-Will-o-Wisp
-Leech Seed
-Protect/Pain Split
-Seed Bomb/Shadow Sneak
Nature: Impish
EVs: 252 HP/4 Atk/252 Def
Item: Leftovers
Ability: Frisk

Trevenant:
-Wood Hammer/Horn Leech
-Earthquake/Rock Slide
-Will-o-Wisp
-Rest
Nature: Impish
EVs: 252 HP/132 Def/124 Spe
Item: Leftovers/Lum Berry
Ability: Natural Cure/Harvest

or
-Substitute
-Leech Seed
-Will-o-Wisp
-Phantom Force
Nature: Impish
EVs: 252 HP/132 Def/124 Spe
Item: Sitrus Berry
Ability: Harvest

Greninja:
-Hydro Pump/Surf
-Dark Pulse
-Ice Beam
-U-turn/Hidden Power (Fire)
Nature: Hasty/Timid
EVs: 4 Atk/252 SAtk/252 Spe
Item: Life Orb
Ability: Protean

or
-Spikes
-Hydro Pump/Surf
-Ice Beam
-Dark Pulse/Hidden Power (Fire)
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb/Focus Sash

Jolteon is walled hard by Ground Pokemon, especially Golurk:
-Thunderbolt
-Volt Switch
-Hidden Power (Ice/Fire)
-Shadow Ball
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb/Choice Specs
Ability: Volt Absorb

A specially-based Lucario should use its Mega form, but your slot is already taken up by Charizard. Physically-based Lucario is better in this case. Quick Guard only sees use in doubles/VGC battles:
-Swords Dance
-Close Combat
-Extreme Speed/Bullet Punch
-Earthquake/Crunch
Nature: Adamant/Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb

A Calm nature wastes away Scizor's good Attack. None of its current moves benefit from Technician and its Special Attack is too weak for Air Slash. What's a Scizor without its signature Bullet Punch?:
-U-turn
-Bullet Punch
-Brick Break
-Pursuit/Quick Attack
Nature: Adamant
EVs: 248 HP/252 Atk/8 Spe
Item: Choice Band
Ability: Technician

or
-Swords Dance
-Bullet Punch
-X-Scissor
-Brick Break
Nature: Adamant
EVs: 252 Atk/4 SDef/252 Spe
Item: Life Orb/Iron Plate/Metal Coat
Ability: Technician

or
-U-turn
-Iron Head/Bullet Punch
-Brick Break
-Pursuit
Nature: Jolly
EVs: 252 Atk/4 SDef/252 Spe
Item: Choice Scarf
Ability: Technician

or
-U-turn
-Bullet Punch
-Pursuit
-Brick Break/Roost
Nature: Adamant
EVs: 248 HP/112 Atk/148 SDef
Item: Assault Vest (4 offensive moves only)/Leftovers
Ability: Technician

 

[Sevynn]

This definitely helps out a whole lot! Thanks so much! So opting Blastoise out for Greninja would be better? I've thought of that but I've heard how incredibly squishy Greninja can be in battle...But I can't say much since I've never really used Greninja much at all. :S

As for Venusaur, I kind of kept him in my team because it covered grass but could also do some poison damage should the other team have a fairy..But I always felt that maybe another pokemon could cover this position as well? I'll start to work on my Scizor right away!

 

[PlatinumDude]

This definitely helps out a whole lot! Thanks so much! So opting Blastoise out for Greninja would be better? I've thought of that but I've heard how incredibly squishy Greninja can be in battle...But I can't say much since I've never really used Greninja much at all. :S

As for Venusaur, I kind of kept him in my team because it covered grass but could also do some poison damage should the other team have a fairy..But I always felt that maybe another pokemon could cover this position as well? I'll start to work on my Scizor right away!

As I said before, Venusaur is only good in its Mega form or with its regular form + Chlorophyll. Since your Mega slot is taken up by Mega Charizard X, you'll have to take Venusaur out. Other Poison alternatives include Roserade, Amoonguss, Crobat and Scolipede. Steel Pokemon also deal with Fairies, and one of the suggestions I pointed out earlier, Ferrothorn, also deals with them. Of course, Scizor also gets the job done.

Anyway, more set suggestions:

Roserade:
-Spikes
-Sleep Powder
-Leaf Storm
-Hidden Power (Fire)
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb/Focus Sash
Ability: Natural Cure/Technician

or
-Leaf Storm
-Sludge Bomb
-Hidden Power (Fire)
-Rest/Sleep Powder
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb
Ability: Natural Cure/Technician

or
-Spikes/Toxic Spikes
-Giga Drain
-Sludge Bomb/Hidden Power (Fire)/Toxic Spikes
-Synthesis/Rest/Sleep Powder
Nature: Calm
EVs: 252 HP/120 Def/136 SDef
Item: Black Sludge
Ability: Natural Cure

Amoonguss:
-Spore
-Giga Drain
-Hidden Power (Ice/Fire)/Sludge Bomb
-Stun Spore/Clear Smog
Nature: Calm
EVs: 252 HP/28 SAtk/228 SDef
Item: Black Sludge
Ability: Regenerator

Crobat:
-Brave Bird
-Taunt
-U-turn/Toxic
-Roost
Nature: Jolly
EVs: 120 HP/136 Atk/252 Spe
Item: Black Sludge
Ability: Infiltrator

or
-Brave Bird
-Defog
-U-turn
-Roost
Nature: Jolly
EVs: 252 Atk/4 Def/252 Spe
Item: Black Sludge/Life Orb
Ability: Infiltrator

Scolipede:
-Spikes
-Swords Dance/Toxic Spikes
-Megahorn
-Baton Pass
Nature: Adamant
EVs: 4 HP/252 Atk/252 Spe
Item: Focus Sash
Ability: Speed Boost

or
-Swords Dance
-Megahorn
-Earthquake
-Rock Slide/Baton Pass
Nature: Jolly/Adamant
EVs: 252 Atk/4 Def/252 Spe
Item: Life Orb
Ability: Speed Boost