Choronzon is confused and often quite stupid. But it is also extremely cunning and dangerous. It can manipulate people subtly while appearing to make crude attacks. The demon will almost always retreat from any attack, not even defending itself. But it will never give up, and will reappear later, in a more insidious form. The only thing it cannot abide is order and discipline. Any form of highly ordered thought, speech or behavior is abhorrent to it, and it will flee if possible (unless it could topple the order in a subtle way).
The demon seldom appears threatening to a mage. Instead it appears to be a quite confused and irritating little being, unable to do much harm. In fact, it often behaves entertainingly, incoherently discussing things that seem important to the mage. While the mage listens to the confusing demon, it will slowly plant the seeds of dissolution in the soul of the mage. Choronzon will strengthen the flaws and illusions in the victim, making the victim believe in his own self image. As the demon works on, the mage will be derailed from the path towards Ascension and turned towards dissolution and insanity. A mind infected by Choronzon will slowly decay, and the victim will be a simple matter to possess for the demon, regardless how strong-minded the victim believes he is.
It is thought that Choronzon dwells somewhere near The Horizon, in an area known as the Abyss (Which could be another name for the Deep Umbra). According to some rumors, he must be defeated by anyone venturing out into the Deep Umbra searching for a place among the Oracles.