PkmnTrainerJ said:
Yeah, but if you're going to use it, then you'll level it up enough anyways. Gimme a sec and I'll give you movesets for everyone else.
Charizard
Earthquake
Slash
Flamethrower
Wing Attack
Pikachu
*Surf
**Volt Tackle
Thunderbolt
Thunder
Substitute
Encore
Machamp
Cross Chop
Metronome - Need FR/LG (Comedic Value)
Ice Punch**
Seismic Toss
Blastoise
Hydro Cannon
Skull Bash
Ice Beam
Filler
Venusaur
Frenzy Plant
Toxic/Sludge Bomb
Leech Seed
Fury Cutter**
Alakazam
Double Team
Shadow Ball
Mimic
Psychic
*If you have Box.
**If you have Emerald
no.... those attacks aren't going to work so well.

For one thing, paying attention to a Pokemon's base stats is pretty much the fundementals. For example, you suggested Shadow Ball Alakazam. Take a look at its stats:
Attack: 50
Sp.Attack: 135
see the difference? Go with Sp.Attacks for Alakazam.
And don't overlap attacks. The Pikachu you gave knows Thunder AND Volt Tackle. Both are Electric attacks that do damage on contact, so only one is needed. But when you look at Pikachu's defenses, if Thunder/Volt Tackle misses, Pikachu's most likely going to suffer. That's why Thunderbolt is the best choice.
Now, teaching a Pokemon an attack like Frenzy Plant/Hydro Cannon isn't that good either. Why? Well, when you use that attack, you have to recharge. There's nothing you can do. Can't switch out, can't counter, etc. A reliable, powerful attack is good. (like Surf/Razor Leaf)
anyways, Don't teach your Ivysaur/Venusaur Solar Beam. Wastes a turn.
Charizard (Adamant/Jolly/Lonely/Naughty/Hasty Nature) @Leftovers/Salac Berry
EVs: 252 Speed, 200 Attack, 58 Sp.Attack (somethin' like that)
-Flamethrower/Fire Blast
-Belly Drum/Swords Dance/Dragon Dance (DD is a last resort)
-Rock Slide/EQ
-Aerial Ace
Pikachu (Timid Nature) @Light Ball
EVs: 252 Sp.Attack, 252 Speed, 6 Hp
-Thunderbolt
-Substitute
-HP Special/Surf
-Encore
Machamp (Adamant Nature) @Leftovers/Choice Band
EVs: 252 Attack... not sure about the rest
-Cross Chop
-EQ
-Rock Slide
-Facade
Blastoise (Bold/Calm Nature) @Leftovers
EVs: not sure..
-Surf
-Ice Beam
-Rest
-Yawn/Counter/Seismic Toss
Venusaur (Impish/Bold Nature) @Leftovers
EVs: not sure either. ^_^;
-Razor Leaf (Bold Nature)/Sludge Bomb (Impish Nature)
-Sleep Powder
-Leech Seed
-Synthesis
fun MS.
Alakazam (Modest/Timid Nature) @Leftovers?
EVs: 252 Sp.Attack, 252 Speed, 6 Hp
-Psychic
-Thunder Punch
-Ice Punch
-Calm Mind/Fire Punch
wow. That was a lot. I hope this helps