Kalak, Herald of Willshapers

Whenever Kalak, Herald of Willshapers enters
the battlefield look at the top three cards of your library, put one into your hand, one in your graveyard and one into exile.
{2}{w}{u}{b}: Choose graveyard or exile. Put target nonland permanent without a Shade counter on
it from the choosen zone onto the battlefield.
Exile Kalak until that permanent leaves play. If a permanent put into play this way would leave the battlefield, exile it with a Shade counter.