Beseech the Horned One

When Beseech the Horned One enters the battlefield, you may search your library for a
basic land card, reveal it, put it into your hand,
then shuffle.
{1}{g}, Tap a creature you control: Target
creature blocks this turn if able. Activate only as
a sorcery.
Sacrifice Beseech the Horned One: Prevent all
combat damage that would be dealt this turn.