1. Know the answer to any question posed to me
2. Ability to become invisible
3. Immortality; The limb regenerating, never grow old, never die type thing (Deadpool without the pretty face)
Wish I could teleport/shift/phase like the Hayden on Jumper or Nightcrawler in Xmen. (I'm probably the only guy that liked Jumper)
Understand any language (Without a babel fish, yuck)
Move around in time, say hello to the crew of Voyager, visit the Romans, see the universe end, well, have dinner with Zaphad, Arthur, Ford and of course, Trilian...