I'm a bit new to competitive battling so I would appreciate any advice as to how to make my team better. I am open to any suggestions on better moves, items, EV distribution, or better pokemon. If you suggest a different pokemon please include: items, abilities, EVs, Natures and Moves.
Kangaskhan
item- Kangaskhanite
ability- Parental Bond
EVs: 252 Atk, 248 Spe, 8 hp
nature: Jolly
Moves: Aqua Tail, Drain Punch, Crush Claw, Earthquake
Greninja
item- Expert Belt
ability- Protein
EVs: 252 Spe, 252 Spa, 4 Spd
nature: Modest
Moves: Scald, Dark Pulse, Hidden Power fire, Hidden Power Ground
Mewtwo
item- Expert Belt
ability- Pressure
EVs: 252 Spe, 252 Spa, 4 Spd
nature: Modest
Moves: Aura Sphere, Psychic, Energy Ball, Flamethrower
Togekiss
item- Leftovers
ability- Serene Grace
EVs: 252 Spa, 252 Hp, 4 Spd
nature: calm
Moves: Air Slash, Tri Attack, Nasty Plot, Soft Boiled
Kyurem-white
item- Expert Belt
ability- Turboblaze
EVs: 252 Spa, 248 Hp, 8 Spd
nature: Modest
Moves: Dragon Pulse, Ice Beam, Fusion Flare, Earth Power
Ferrothorn
item- Leftovers
ability- Iron Barbs
EVs: 252 Def, 252 Hp, 4 Atk
nature: Adamant
Moves: Iron Head, Seed Bomb, Toxic, Spikes