Temporal Teleportation

50 percent chance you die

I would have the power to enter fictional universes (Ideally it would be Meta teleportation but well that's absolute).

50% of the time you enter fictional universes, you feel an intense pain of ten thousand fiery swords in your gut

Fictional Mimicry

Your powers can/will change based on what the person observing you knows about you (e.g a person who doesn't know superman can fly observing you would mean you couldn't fly.)