If blast burn one hit kills and you have shift on, you can switch out the pokemon and not suffer a move penalty consequence (pretty sweet, no?)

Kay, this is my FireRed team, I want to know what to add to it to improve it---I focused on types and now I'm FINALLY, after 100 hours, ready to use some of my many one-use TM's.

Jolteon --- magnet
** this pokemon is the staple of my lineup and I will not drop it
quiet nature
shock wave
double kick
bite
thunderbolt

Aerodactyl --- sharp beak
careful nature
wing attack
fly
bite
ancientpower

Flygon --- amulet coin
rash nature
bite
dragonbreath
crunch
dig

Arcanine --- charcoal
lonely nature
flamethrower
bite
overheat
extremespeed

Tyranitar --- blackglasses
sassy nature
earthquake
rock slide
crunch
thrash

Cloyster --- mystic water
sassy nature
surf
clamp
aurora beam
ice beam

suggestions? I'm not really ready to change too many of the actual pokemon but i suppose some are plausible. moveset help is muchly needed, however, and maybe some items to go with them, i'm not good at movesets.
thanks in adv.