If there's always a White Magickian, then there is always a Black Magickian.  By almost destroying the fabric of time and space, the Black Magickian named Lord Shadowhole erased himself from time himself.  Only the chronosorcellors could remember him.  When the only White Magickian gained almost immortality, the chronosorcellors tried their best from preventing the creation of a new Black Magickian.  As a result, each one of them began to die as a toll.  But even they could not prevent the coming of a new Lord Shadowhole.