Need help with my team

[Broken.Promise.]

Here's my current competitive team, can you give me a hand and see if I'm missing anything?

Dragalge (M) @ Black Sludge
Ability: Adaptability
Shiny: Yes
EVs: 252 HP / 128 Def / 128 SDef
Impish Nature
- Toxic Spikes
- Venoshock
- Dragon Tail
- Protect

Greninja (M) @ Life Orb
Ability: Protean
EVs: 252 Spd / 252 SAtk / 4 HP
Timid Nature
- Surf
- Ice Beam
- Extrasensory
- Dark Pulse

Kangaskhan-Mega (F) @ Kangaskhanite
Ability: Parental Bond
Shiny: Yes
EVs: 252 Spd / 252 Atk / 4 SDef
Jolly Nature
- Sucker Punch
- Return
- Earthquake
- Power-Up Punch

Aegislash (F) @ Leftovers
Ability: Stance Change
EVs: 252 Atk / 252 HP / 4 SDef
Adamant Nature
- King's Shield
- Shadow Sneak
- Sacred Sword
- Swords Dance

Galvantula (F) @ Shell Bell
Ability: Compound Eyes
EVs: 252 Spd / 252 SAtk / 4 SDef
Timid Nature
- Thunder Wave
- Thunder Wave
- Bug Buzz
- Energy Ball

Noivern (F) @ White Herb
Ability: Infiltrator
EVs: 252 Spd / 252 SAtk / 4 Atk
Hasty Nature
- Draco Meteor
- Flamethrower
- Air Slash
- U-turn

Any advice would be greatly appreciated :) I've only just started competitive play so whatever help can be given will be greatly appreciated!!

 

[Nah]

Greninja should use Grass Knot instead of Extrasensory. ES doesn't offer any extra coverage, while Grass Knot lets it hit opposing Water types harder.

Galvantula has little use for a Shell Bell. Life Orb would be better, and you can compensate for the HP drain by switching Energy Ball with Giga Drain (if you can). And Galvantula gets Sticky Web, so swap Thunder Wave with that. You can slow down opposing Pokemon even when Galvantula's not there, as well as Electric and Ground types.

And I'm pretty sure Adaptability hasn't been released for Dragalge yet, so you can't use that as its ability (which unfortunately means you have to go with one of its rather redundant and sorta useless normal abilities).

Oh, and if this is for OU battles in Showdown, Kangaskhanite is banned to Ubers.

 

[PlatinumDude]

Greninja should use Grass Knot instead of Extrasensory. ES doesn't offer any extra coverage, while Grass Knot lets it hit opposing Water types harder.

Galvantula has little use for a Shell Bell. Life Orb would be better, and you can compensate for the HP drain by switching Energy Ball with Giga Drain (if you can). And Galvantula gets Sticky Web, so swap Thunder Wave with that. You can slow down opposing Pokemon even when Galvantula's not there, as well as Electric and Ground types.

And I'm pretty sure Adaptability hasn't been released for Dragalge yet, so you can't use that as its ability (which unfortunately means you have to go with one of its rather redundant and sorta useless normal abilities).

Oh, and if this is for OU battles in Showdown, Kangaskhanite is banned to Ubers.

Extrasensory lets Greninja hit Tentacruel, which walls Greninja that lack the move. It also hits Keldeo harder than Grass Knot would.

Galvantula gained Sticky Web in Gen VI to slow down grounded switch-ins. Use it:
-Sticky Web
-Thunder
-Bug Buzz
-Volt Switch/Hidden Power (Ice/Fire)
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb/Focus Sash
Ability: Compound Eyes

Air Slash is somewhat weak on Noivern, who isn't that strong to begin with:
-Draco Meteor
-Flamethrower
-Focus Blast
-Switcheroo/Hurricane/U-turn/Roost
Nature: Timid/Naive
EVs: 252 SAtk/4 SDef/252 Spe
Item: Choice Specs/Life Orb
Ability: Frisk/Infiltrator

Dragalge isn't that good without Adaptability. This appears to be an offensive team, so Toxic Spikes don't see much use. Klefki, on the other hand, provides another alternative entry hazard with Spikes; it also sets up Reflect/Light Screen to help your frail attackers:
-Reflect
-Light Screen
-Spikes
-Dazzling Gleam/Foul Play
Nature: Bold
EVs: 252 HP/152 Def/104 SDef
Item: Light Clay
Ability: Prankster

Other hazard setters to include are Forretress, Skarmory and Ferrothorn:

Forrretress:
-Spikes/Stealth Rock
-Rapid Spin
-Gyro Ball
-Earthquake/Volt Switch
Nature: Relaxed
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers

Skarmory:
-Spikes/Stealth Rock
-Whirlwind
-Roost
-Brave Bird/Defog
Nature: Impish/Careful
EVs: 252 HP/252 Def/4 SDef or 252 HP/4 Def/252 SDef
Item: Leftovers
Ability: Sturdy

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

Aegislash's EV spread should be 240 HP/252 Atk/4 SDef/12 Spe to outspeed min Speed Tyranitar, while giving it a Leftovers number.

 

[Broken.Promise.]

Thanks guys! My Dragalge actually has Poison Point, so yeah, don't know why I wrote Adaptability.

Was tempted to use Klefki for a while now, so if it does Dragalge's job better, then that'll probably help :) And I'll consider trading Noivern for Skarmory or Ferrothorn, thank you :)

EDIT: and this is for in-game play, so I'm just fighting with whatever Pokémon I like playing with, I haven't considered tiers yet (if I play Showdown I'll bear Mega-Kangaskhan in mind) :)