Ship of the Son

When Ship of the Son enters the battlefield you
may have any number of Pirate creatures you
control become Enchantment- Pirate Aura. If
you do, attach them to Ship of the Son.
Ship of the Son's power is equal to the total
power among Pirate Aura cards attach to Ship of
the Son, same goes for the toughness.
Crew X (X is equal to half the number of Pirate Aura cards attached to Ship of the Son.)