can anyone give me a list of characters that work well with shaco? ty in advance.. btw... would gangplank work well with him?

blitzcrank = guaranteed first blood.

Also, you will forever be labelled as a ****.

Fiddles + Shaco Hands down lol

Try twisted fate, worst combo i have ever laned against, and best combo i have ever worked with.

done it multiple times, sometimes as TF other times as Shaco, never has it happened that such a combo failed on me.

Yeah, anyone with stun/disable.
Like um... Chogath, He can rupture for the stun, then Feral Scream for the silence, and then You (Shaco) can decieve in and grab the kill.

Rammus = Powerball + Taunt... easy kills (faced this combo, killed me from 100%hp)
Blitz = Pull into JitB, waits for fear to wear off, power first + damage the whole time ... gg
Morgana = Deceive/JitB/Shiv after a confirmed hit with dark bindings + magic shield
Kassadin = (Only after lvl 6 with rift) Riftwalk/Deceive > Force pulse > Shiv > GG spike dmg
Soraka = For the reasons soraka is useful (tons of mana/hp)
Alistar = Healing, stun and placement (can knock into JitB's)

thats about the best of the best right there

Also of note:

Anyone with a first-level multi-second disable (Sion, Taric)
Jana (more damage from her buff = way more damage on your guaranteed Crit = first blood, plus shield helps with tower diving)
Zilean (he can throw a bomb on your for an invisible extra 100 damage on your first blood)

Etc. Most people are decent with him. The only kind of people you don't want are those who will be competing with you for kills.