Help with my team

[FinrodDX]

Hi, this is my current team. I need help with changes, EVs, or movesets :S

Klefki (M) @ Air Balloon
Ability: Prankster
EVs: 252 Def / 252 HP / 4 SDef
Bold Nature
- Dazzling Gleam
- Thunder Wave
- Swagger
- Safeguard

Kangaskhan @ Kangaskhanite
Ability: Scrappy
EVs: 252 Atk / 252 Spd / 4 Def
Adamant Nature
- Fake Out
- Return
- Sucker Punch
- Power-Up Punch

Greninja (M) @ Expert Belt
Ability: Protean
EVs: 252 Spd / 252 SAtk / 4 Atk
Modest Nature
- U-turn
- Grass Knot
- Scald
- Ice Beam

Garchomp @ Life Orb
Ability: Rough Skin
EVs: 252 Spd / 252 Atk / 4 HP
Jolly Nature
- Dragon Claw
- Earthquake
- Stone Edge
- Protect

Charizard @ Charizardite Y
Ability: Blaze
EVs: 252 Spd / 252 SAtk / 4 HP
Timid Nature
- Dragon Pulse
- Heat Wave
- Solar Beam
- Air Slash

Jolteon @ Choice Specs
Ability: Volt Absorb
EVs: 252 Spd / 252 SAtk / 4 HP
Timid Nature
- Thunderbolt
- Volt Switch
- Hidden Power Ice
- Shadow Ball

Thx for all!