Former Admiral Jackson

Whenever a Pirate you control deals damage to a creature an opponent controls, gain control of
that creature except it's a 0/1 Hostage with "This creature cannot attack or block and at the
beginning of their owning players upkeep they
may have you create treasure tokens equal to the
CMC of this creature and regain control of it."
Tap 5 untapped Pirates to deal 1 damage to target creature.
"Booty in life, Booty in death."- Jackson