Hi, first guide. I published something like this before I made my account, but hopefully this is improved. This guide is about the team comp, so I ignored masteries/runes/etc.

Map Control
The whole point of this team is to... control the map, using 3 global teleports, clairvoyance, and a crazy stealth ganker.
Shaco (jungle)- AD/hybrid Shaco keeps enemies afraid. They will play defensively early on in lanes, but get bored of that, which is when he will kill them. With so much cc in the lanes Shaco basically has guaranteed kills. Also, his stealth lets him counter jungle well.
Sion (solo top)- Sion will go AP and solo 2v1, farming health from his e and turret hugging. Once Shaco hits levels 4-5, Sion's stun, ignite, Shaco's exhaust, and poison will net kills.
Twisted Fate (solo mid)- TF provides a global teleport, global intelligence, and great cc. Mid lane he will farm, ganking at 6.
Pantheon+Shen (2v2 bot)- Shen and Pantheon have good synergy together. Their collective cc will probably allow Pantheon to get early kills, Shen's q ability keeps their health topped off. Shen and Panth both bring global teleports to the table, and can gank any lane at lvl 6.
Shen is potentially replaceable with Blitzcrank or Rammus, due to their great synergy together with Panth.

Early game this team should be able to farm effectively and deny the other team gold/xp. Their amazing gank ability will faceroll the other team and beat them into submission at 25 minutes.

Please comment/vote and let me know what you think!