I'm putting a team together for the upcoming 2013 Spring Friendly and just need someone to review it for me.

Serperior @Leftovers
Nature: Naughty
~Coil
~Leaf Blade
~Substitute
~Dragon Tail

Azumarill @Choice Band
Nature: Gentle
~Waterfall
~Ice Punch
~Superpower
~Double-Edge

Unfezant @Focus Sash
Nature: Jolly
~Hypnosis
~Return
~Taunt
~Taunt

Scolipede @Life Orb
Nature: Jolly
~Megahorn
~Earthquake
~Rock Slide
~Swords Dance

Cofagrigus @Lum Berry
Nature: Bold
~Will-O-Wisp
~Shadow Ball
~Haze
~Pain Split

Gothitelle @Choice Scarf OR Choice Specs?????
Nature: Quiet
~Psychic
~Signal Beam
~Thunderbolt
~Trick

I'm mainly concerned about the item that Gothitelle holds, but any other suggestions would be greatly appreciated!