Another one of my ideas of a scientist looking for a cure to the common cold. He instead, accidentally mutated his own mucus to the point in which it gained a mind of its own. Now, Drew is immune to the cold, and has basic control over Ooze, his superpowered snot.
Ooze can obtain the properties of any material that Drew knows of, even changing its electromagnetivity and density. When it was created, it had no previous knowledge, and so, it only learns from the world around it, and from Drew's scientifical mind.
With this combination, Drew can give Ooze the instructions to turn into complex mechanisms from bats to guns. Simply sneezing is a devastating attack if Ooze adopts a crystaline structure in mid-launch. The limit to Ooze's power is his mass, as he cannot exceed his own overall mass.
While Ooze is in Drew's skull, they can communicate directly, but if all of Ooze is out of Drew's skull, they have no way to exchange thoughts whether it be vocally or telepathically.
On a quest to help everyone escape the cold, or to add more to Ooze until you are unstoppable, Drew will find the materials needed to make more of Ooze and to decide how the world will change, FOREVER!
dun dun dun