Vessen Bull, Felsahl Captain

Other Pirates you control have "When this creature deals combat damage to a player, create
a colorless artifact token named Gold. It has 'Sacrifice this artifact: Add one mana of any color to your mana pool.'"
{u/b}{u/r}, Sacrifice two Gold tokens: create a 2/2
blue Pirate creature token.
"Pillage and plunder, boys. The world is your oyster."