Polygraph Orb (MKM-099) - Murders at Karlov Manor

When this artifact enters, 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.
, , 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.)