Hello everyone been playing pokemon black 2 and white 2 i finally got ahold of a DS so i went and bought them....
im thinking about making a team for competitive battling now i dont know too much about this but i think this is a balanced team please pokemon fans tell me what you think

Blissey- Nickname: Egg Shooter Special Defense Wall
Item- Leftovers
Ability- Nature Cure
Nature Calm
Moveset- Aromatherapy, Soft Boiled, Seismic Toss, Toxic EVS- 4 HP, 252 Defense, 252 Special Defense


Haxorus- Nickname: Hax Sweeper
Item- Choice Band
Ability- Mold Breaker
Nature- Adamant
Moveset- Outrage, Earthquake, Brick Break, Daul Chop EVS- 36 HP, 252 Attack, 220 Speed

Fortress- Nickname: Walnut Staller
Item- Leftovers
Ability- Sturdy
Nature- Relaxed
Moveset- Toxic Spikes, Spikes, Rapid Spin, Gyro Ball or Volt Switch EVS- 252 HP, 176 Defense, 80 Special Defense

Skarmory- Nickname: Kamikaze Defense Wall
Item- Leftovers
Ability- Sturdy
Nature- Impish
Moveset- Roost, Spikes, Whirlwind, Brave Bird

Hydreigon- Nickname: Hydra Special Sweeper
Item- Life Orb
Nature- Mild/Rash
Moveset- Draco Meteor, Fire blast, Super Power, Roost EVS- 4 HP, 252 Special Attack, 252 Speed
and for my last

Gliscor- Nickname: Biowing Special Staller
Item- Toxic Orb
Ability- Poison Heal
Nature- Impish
Moveset- Substitute, Protect, Earthquake, Toxic EVS- 252 HP, 184 Defense, 72 Speed

OR

Clefable- Nickname- MAGIC Support/Healer
Item- Leftovers
Ability- Magic Guard
Nature- Calm
Moveset- Wish, Protect, Seismic Toss, Heal Bell EVS- 252 HP, 4 Defense, 252 Special Defense

Just needed to know if there could be changes made like replacing a pokemon and a question for the last one on the list which should i choose or should i choose either? and could you help me come up with a Lead for the list i gave thanks a bunch keep in mind this is my first team i made by myself so it could be complete crap i dont know and also if you have nothing helpful to say please dont comment :P i will report as spam thanks :D