What is Fae Maleficence?

Fae Maleficence is Malleus Draconia's unique magic or signature spell, a concept exclusive to the Twisted Wonderland world. As its name says, unique magic means an specific spell which is unique to the caster, that is, no one else can cast it. This spell has only appeared once in the story during book 7, which was the reason for every single one of the events during that book, as a response from Malleus to the inminent parture of the one person he holds dearest: Lilia Vanrouge.
Despite it being truly catastrophic, to the point this spell was prohibited by law to be casted again, It is this spell that ties him to the one by whom he was inspired: Maleficent. However, what's ironic is he put the whole island to sleep, everyone except Silver (Aurora).