Sea Floor Civilization

Enchant Basic Island
Enchanted land has "{t}: Scry 1," and
"{u},{t}: Create a token copy of Sea Floor Civilization and attach it to a basic Island you
control"
Whenever attackers are declared, if you are not
being attacked by a blue creature, choose a
creature attacking you. That creature gets -1/-0
and loses all abilities until the end of the turn,
and doesn't untap during its controller's next
untap step.