Battle Subway Team

Please rate my battle subway team and make suggestions on movesets or whole pokemon (also I need a suggestion for a fourth for doubles):



Volcaroa-Lead
Item: Leftovers
Nature: Timid
EVs: 4 HP, 252 Sp. Attack, 252 Speed
Moveset: Hurricane, Fiery Dance, Quiver Dance, Bug Buzz
Strategy: Quiver Dance once then use whatever is super-effective, or Fiery Dance if nothing is super-effective for the possible special attack boost (unless Fiery Dance is not very effective).


Ferrothorn-Annoyer
Item: Shell Bell
Nature: Careful
EVs: 4 HP, 252 Defense, 252 Special Defense
Moveset: Sandstorm, Toxic, Gyro Ball, Curse
Strategy: Toxic->Sandstorm->Curse a few times->Gyro Ball

Hydreigon-GOOD POKÉMON
Item: Choice Scarf
Nature: Timid
EVs: 4 EV, 252 Special Attack, 252 Speed
Moveset: U-Turn, Focus Blast, Fire Blast, Draco Meteor
Strategy: Use whatever is super effective, or Draco Meteor if none are, or U-turn if Hydreigon will obviously be KO'd.