Polygraph Orb (#99:MKM)

When Polygraph Orb enters the battlefield, look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.
2, T, Collect evidence 3: Each opponent loses 3 life unless they discard a card or sacrifice a creature. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.)