Arcane Lighthouse

{t}: Add {c}.
{1}, {t}: Until end of turn, creatures your
opponents control lose hexproof and shroud and
can't have hexproof or shroud.
Beyond the marsh flats and the natural canals lies the
ocean and, a little farther down the coast, a derelict
lighthouse. All of this part of the country had been
abandoned for decades, for reasons that are not easy
to relate.