I'd like the superpower that Rich Hall once described on an episode of QI, of being able to see into the future but only by a few seconds. Then I could say "gesundheit" and make people sneeze.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'