It should preferably be used in the final phase of a boss or mini-boss fight, when most enemies are at their most dangerous. Works on the Demon of Hatred optional boss and can stun it up three times. After the 3rd use it will enrage the boss and cause it to charge at you.
What is malcontent used for?
Malcontent is often used to describe people who complain about more important things than steaks — things like social and political injustice. In Shakespeare's day, the Malcontent was a popular character type. Hamlet was a classic Malcontent.
Does malcontent work on demon of hatred?
The Demon of Hatred can be momentarily stunned up to three times when using the Malcontent upgrade for the Finger Whistle against it. As an apparition-type enemy, the boss can also be dealt extra damage using Divine Confetti.