Well, since this thread wasn't as much of a flop as I thought it would be, I'll dive in a little further and take a page out of Touhou's book of recockulous powers:
The best power ever? Manipulation of Boundaries. Allow me to explain...
Imagine that everything in this universe is separated by "boundaries", such that things may exist independently from one another; there is a boundary that separates red from blue, a boundary that separates wood and iron, a boundary the separates water and peanut butter, etc. If there were no such boundaries, all things and concepts in this universe would exist as a single, unidentifiable entity, where absolutely EVERYTHING was one and the same. Thus, from this understanding, comes the manipulation of boundaries.
In application, you can add or remove boundaries of any concept imaginable. The simplest thing to do is say "I remove the boundary between 'here' and 'there'", creating a spacial gap that effectively makes a portal in the style of the similarly named PC first-person puzzle game. You could remove the boundary between paper and brick, enabling you either to plunge a fork through a brick wall, or stop a bullet with a newspaper. And when you get REALLY crazy, you can manipulate pure concepts, like removing the boundary between 'Truth' and 'Illusion', so that you may step on the moon through its reflection on a lake. You might create a boundary between 'Now' and '2 Minutes From Now', inserting a gap of time beyond the normal boundaries of time.
When you think of the universe in boundaries, the ability to manipulate boundaries is essentially the power to undermine the universe.
