Feraligatr- Aqua tail, Earthquake, Ice punch, Swords Dance
Arcanine- Flare blitz, Extremespeed, Thunder fang, Howl absolutely get rid of howl. It's not usefull, Arcanine is too fragile to pull it off. Also, you're using choice band, so you'll be stuck doing nothing. Iron Head would solve this, and give you a way to take on rock types
Scizor- Swords dance, X-scissor, Super power, Bullet punch
Slowking- Calm mind, Psychic, Surf, Rest
Dragonite- Dragon rush, Fire punch, Aerial ace, Dragon dance
Luxray- Spark, Ice fang, Crunch Return Ditch luxray. If you really MUST use an electric type, go with a Rotom, because A) It's special, and B) has usefull nature and typing. Luxray is just, well, bad... If you take my life orb sugestion to heart, go with jolteon, and give it wish.
Feraligatr- Evs: 4 hp, 252 atk, 252 spd. Nature: Naive. Item: Expert belt Maybe life Orb will get even better results. Especially with agility+wish passed from Jolteon. Jolteon would also make a way better lead.
Arcanine- Evs: 4 hp, 252 atk, 252 spd. Nature: Adament. Item: Choice band
Scizor- Evs: 252 hp, 112 def, 144 spd. Nature: Adament. Item: Leftovers
Slowking- Evs: 148 hp, 128 def, 56 satk, 176 sdef. Nature: Bold. Item: Leftovers
Dragonite- Evs: 4 hp, 252 atk, 252 spd. Nature: Adament. Item: Lum berry
Luxray- Evs: 4 hp, 252 atk, 252 spd. Nature: Adament Item: Choice scarf