Any Changes?

[BlueExplosion]

Wondering if I should make any changes to my party:

Kabutops w/ ---, Bashful Nature (Lvl. 40)
Scratch
Slash
Mega Drain
Mud Shot

Jirachi w/ Exp. Share, Serious Nature (Lvl. 41)
Wish
Double-Edge
Psychic
Swift

Umbreon w/ Amulet Coin, Modest Nature (Lvl. 51)
Faint Attack
Psychic
Assurance
Shadow Ball

Raichu w/ Magnet, Quiet Nature (Lvl. 55, Most likely to Replace)
Thunder
Thunderbolt
Double Team
Slam

Charizard w/ Razor Claw, Brave Nature (Lvl. 55)
Air Slash
Fly
Flamethrower
Fire Fang

Milotic w/ Splash Plate, Quiet Nature (Lvl. 58)
Surf
Ice Beam
Recover
Hydro Pump

Any Help's appreciated!