I really need help beating noel. All the other gym leaders were easier than this guy. HE IS REALLY HARD! Can someone rate my team and help me out on how to beat this guy? 
   
 Team: 
   
 
Stoutland-Lv.51- Jolly: Retaliate, Work Up, Crunch, Strength   Ability: Sand Rush     Item: Silk Scarf 
Donphan-Lv.50- Rash: Assurance, Rock Smash, Rollout, Earthquake   Ability: Sand Veil 
Serperior-Lv.50- Calm: Leaf Tornado, Leech Seed, Giga Drain, Coil    Ability: Contrary    Item: Big Root  
Alakazam-Lv.51-Relaxed: Psychic, Recover, Charge Beam, Shadow Ball    Ability: Synchronize 
Magmar-Lv.51- Rash: Flamethrower, Confuse Ray, Lava Plume, Smokescreen   Ability: Vital Spirit 
Magneton-Lv.51-Mild: Spark (mostly for paralysis), Metal Sound, Discharge, Flash Cannon   Ability: Sturdy   
                                   Item: Iron Plate