Crab Suppression Field

When Crab Suppression Field enters the battlefield, destroy any Crabs present at the
attached Location, and Crabs cannot be moved
to that Location. If a creature present at the
Location that Crab Suppression Field is built on blocks or is blocked by a Crab, destroy that Crab.
If the Location that Crab Suppression Field is
built on is Bombarded, destroy Crab
Suppression Field and do not destroy the
Location.