Bolas, God of the Multiverse

Flying, Hexproof
{p/w}{p/u}{p/b}{p/r}{p/g}: Choose a card from outside the
game, reveal it, and put it into your hand.
{b}{b}: Exile target creature or planeswalker. You
lose life equal to its converted mana cost.
What you stripped from me those many years ago I
will tear from you and relish your dying
screams.