Cornwallis, the Deceiver

When Cornwallis, the Deceiver enters the battlefield, exile the top 15 cards of each players' library. Your opponents lose 1 life for each
creature exiled this way. Cornwallis has hexproof
if your opponents have 10 or less life.
{b/r}, {t}: Put one card from your exile into your
graveyard, put one card from your graveyard into
your hand, and put one card from your hand
onto the battlefield. Your opponents lose 1 life
for each creature card moved this way.