The Dead Pirate, Bill

Partner with William Blight, Bard of Spirits
(When this creature enters the battlefield, target
player may put William into their hand from their library, then shuffle.)
Menace
Whenever The Dead Pirate, Bill attacks, create X
2/1 blue Spirit Pirate creature tokens tapped and attacking where X is equal to Bill's power.
Sacrifice those tokens at the beginning of the
next end step.