Dimir Mastermind

{u}{u}, reveal a card from your hand at random:
Look at the top three cards of your library. Put
one in your hand and the rest into your graveyard.
{b}{b}, reveal a card from your hand at random:
Target opponent reveals their hand. Then that
player discards a card.
{u/b}: Dimir Mastermind can't be blocked this turn.