Bran, Three-Eyed Raven

Hexproof from blue
You may choose not to untap Bran, Three-Eyed
Raven during your untap step.
At the beginning of your upkeep, look at the top
three cards of your library. Repeat this process
for each of your opponent's libraries. Then your opponents reveal their hands to you.
{1}{u}, {t}: Gain control of target creature for as
long as Bran remains tapped.