Gem of the God-Pharaoh

When Gem of the God-Pharaoh enters the battlefield, exile a card at random from target opponent's hand.
You may play cards exiled with Gem of the
God-Pharaoh and spend mana of any color to
cast them.
{b}{u/r}{u/r}, {t}: Exile a card at random from target opponent's hand, then that player draws a card.