what do people think of my Gen 5 Wi-fi team?

Achronos Asked: what do people think of my Gen 5 Wi-fi team?

Blaziken-
Evs: 255 atk/255 spd
Nature: adamant
Ability: blaze
Item: leftovers
Moves: fire punch, thunderpunch, shadow claw, sky uppercut

Hydreigon-
Evs: 255 spatk/ 255 spd
Nature: modest
Ability: levitate
Item: choice specs
Moves: dragon pulse, dark pulse, surf, flamethrower

Ferrothorn-
Evs: 255 atk/ 129 def/ 126 spdef
Nature: sassy
Ability: iron barbs
Item: rocky helmet
Moves: seed bomb, bulldoze, gyro ball, aerial ace

Feraligatr-
Evs: 255 atk/ 255 def
Nature: adamant
Ability: torrent
Item: shell bell
Moves: waterfall, ice punch, brick break, crunch

Gengar-
Evs: 255 spatk/ 255 spd
Nature: modest
Ability: levitate
Item: big root
Moves: psychic, giga drain, shadow ball, sludge bomb

Rhyperior-
Evs: 255 atk/ 255 def
Nature: adamant
Ability: lightning rod
Item: focus sash
Moves: earthquake, stone edge, thunder fang, hammer arm

please rate and tell me if it needs any changes
thanks