Cast Whispering Madness from your graveyard for its escape cost by paying ({2} magic symbol) ({U} magic symbol) ({B} magic symbol) and exiling three other cards from your graveyard, causing each player to discard their hand, then causing you to draw at least four cards, then create that many Treasure artifact tokens for each opponent you have.
Activate four Treasures by tapping and sacrificing them, adding ({2} magic symbol) ({U} magic symbol) ({B} magic symbol) .