Curse of the Sunken Pirate

As an an additional cost to cast Curse of the
Sunken Pirate, sacrifice a creature.
Enchant creature or Vehicle
As long as enchanted permanent is tapped, its controller cannot cast spells or activate abilities.
"Keelhaul me once, shame on you. Keelhaul me
twice, well, at the bottom of the ocean, I'll be seein'
you."