Krograhk, Deranged Aristocrat

{t}: Search each opponent's library and secretly
note down a card from each opponent's library.
Each opponent then shuffles their library.
-Whenever an opponent draw's a card, reveal that
card. If it is a card secretly noted down,
Krograhk, Deranged Aristocrat deals 10 damage
to that opponent, then discard that card.