Effigy of Madness

When Effigy of Madness enters the battlefield, target players discards two cards at random.
Delirium - At the beginning of your upkeep, if there are four card types or more in your graveyard, put a Madness counter on the Effigy.
{u}{g}{b}, {t} : Target player discards at random a number of cards equals to the number of Madness counters on Effigy of Madness.