Dark Interrogation
Escape from Dol Guldur Nightmare #9 (x2)

When Revealed: Each player must choose and discard cards from hand until he has only 2 cards in hand. (Each player with 2 or fewer cards in hand must instead reveal 1 card from the encounter deck.)

Shadow: Discard each card you control that has at least 1 copy of itself in your discard pile. (If this attack is undefended, each player must resolve this effect.)