Before you start reading this tutorial you should know it's INCOMPLETE. I'm still working on it, requested by an in-game friend of mine. I've published this guide already because he wanted to check it from time to time.

Please DO NOT comment or (up/down)vote yet. If you do I'll just make a new one that is exactly the same and delete this one.
This will only waste my and your time...

Good spells:

• Flash
  • Escape ganks from junglers like Jarvan IV and Lee Sin.
  • Finish opponents with high utility abilities like Ahri and Kennen.
  • Get out of range in teamfights from champions like Vayne and Zed.
• Ignite
  • Finish running opponents with low health.
  • Lower healing in teamfights on champions like Soraka and Volibear.
• Barrier
  • Survive high burst champions like Fizz and Katarina early game.
• Cleanse
  • Not very common but might be useful if you are having difficulties against champions like Annie or Anivia.

Bad spells:

• Clairvoyance
  • Almost completely useless since you'll be using Stealth Ward's and your Stealth Ward to gain vision and prevent ganks.
• Clarity
  • You don't need this since you'll gain enough mana regeneration by using your Pick A Card.

Probably the best choice on Twisted Fate is going for standard AP runes.

• 9x Greater Mark of Magic Penetration
  • Makes sure you'll ignore 24.61% of your opponents Magic Resist, considering he uses 9x Greater Glyph of Magic Resist.
    
    Calculation: (30 Base MR + 12.06 MR runes) - (2.52 Mastery MPen + 7.83 MPen runes) = 31.71 MR left
• 9x Greater Seal of Armor
  • Will give you the extra defence against AD junglers in early, and ADC's in late game.
• 9x Greater Glyph of Magic Resist
  • Will give you the extra defence against your AP lane opponent in early, and AP junglers in late game. If you are against a(n almost) full AD team you might consider using 9x Greater Glyph of Ability Power to dominate your and other lanes early game.
• 3x Greater Quintessence of Ability Power
  • Is the best choice to do some damage early game, it'll be the only resource of Ability Power you have until your first recall.

• Loaded Dice
  • Since Twisted Fate is squichy early game, this is the best passive he could possibly have. In early game you can play carefully and farm while gaining a gold advantage mid / late game.
• Wild Cards
  • You should try to maximize this skill as soon as possible, since it'll be your main damage output. Practicing on hitting multiple units can give you an advantage early game.
• Pick A Card
  • Picking this as first skill is preferable since you'll be able to damage your enemy with a red card, regenerate mana (and deal damage) with a blue card or stun your opponent for an early gank with a gold card.
• Stacked Deck
• Destiny