Thresher of the Depths

Islandwalk, hexproof
As long as Thresher of the Depths is untapped,
you may look at the bottom card of your library
any time. You may cast the bottom card of your library if it's an artifact card.
{2}{u}{b}, {t}: Put target creature on the bottom of
its owner's library. You may put the bottom card
of your library on top and lose 3 life.