Power comes with a price, am I right? In this case, the price would make that power pointless (what use is one punch if nobody is truly gonna acknowledge you, but rather, only in fear they can) and boring.
You have the ability to control demonic powers, for whatever purposes you desire. You become well known in Hell and Heaven for your talents as a human.
However, you will eventually become an enemy to everyone; in Hell for gaining more power than most demons and rivaling the most powerful underworld figures,
in Heaven as you will become seen as "damned" and the armies of Heaven try to capture you, and on Earth...well, self explanatory.
Edit: Dammit asshole, I was researching shit and that derpy ass face came up. Then I had to edit this shit (and I generally wanted to answer hers too)