What in the world is that? Did you torch the poor mushroom? Lol

indigo milk cap.

Just did some research and seems to be called "Shaggy inkcap"? "This mushroom is unusual because it will turn black and dissolve itself in a matter of hours after being picked or depositing spores"

Coprinopsis picacea?

inky cap?

It is not Penis Envy

What is it use for? (genuinely curious)