National Dex help fix my team

[ASDFlan]

Greninja-Ash (M) @ Mystic Water
Ability: Battle Bond
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- Extrasensory
- Dark Pulse
- Ice Beam

Talonflame (M) @ Assault Vest
Ability: Flame Body
EVs: 4 HP / 252 Atk / 252 SpD
Hasty Nature
- Acrobatics
- Brave Bird
- Flare Blitz
- Steel Wing

Thundurus-Therian @ Assault Vest
Ability: Volt Absorb
Happiness: 0
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Volt Switch
- Hidden Power [Ice]
- Flash Cannon

Hawlucha (M) @ Figy Berry
Ability: Unburden
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Agility
- Acrobatics
- Cross Chop
- Throat Chop

Tapu Lele @ Odd Incense
Ability: Psychic Surge
EVs: 4 Atk / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Calm Mind
- Moonblast
- Psychic
- Shadow Ball

Flygon (F) @ Aguav Berry
Ability: Levitate
EVs: 252 HP / 252 Atk / 4 Spe
Adamant Nature
- Dragon Claw
- Body Slam
- Iron Tail
- Power-Up Punch

this is my first time trying to make a team so fix any mistakes( tell me a good special ash greninja with no item that limits it moves)

 

[ShuckleDeath]

Hi, welcome to Smogon! I am locking your RMT for the time being as the forum rules require that you provide at least three lines of descriptions for each Pokemon to explain their roles. Please read the rules carefully and look at Team Showcase to see the detail we require. PM me with updated descriptions, and I will be happy to unlock this.

Tips to help get 3 lines of descriptions

Why did you choose this mon
What do the EV spreads do and why do you have it
What are all 4 moves for