Blockade

This spell costs {2} less to cast as long as you are the
monarch.
Enchanted player cannot use non-mana abilities of
lands, artifacts or enchantments they control.

An Act to discontinue in such Manner, and for such
Time as are therein mentioned, the landing and
discharging, lading or shipping, of Goods, Wares,
and Merchandise, at the Town and within the
Harbour of Boston, in the Province of
Massachusetts Bay, in North America.