Arcanine: Substitute over Hyper beam. You don't need 2 of the same type attacks.
Dragonite: Nice. Sometimes Mimic over T-wave is practical. Dragonite and 1-2 Swords Dance's=
Slowbro: ~Amnesia~Rest~Surf~Thunderwave is an old fav*coughterrorcough*, and gives you recovery.
Jolteon: ~Focus Energy~Reflect~Sand Attack/Thunderwave~Thunderbolt
Tangela: ~Growth~Mega Drain~Sleep Powder~Substitute/Double Edge
Snorlax: Rest~Surf~Amnesia~Body Slam/Self Destruct. ;X