Lazerisk, Beneath the Waves

Lazerisk, Beneath the Waves is unblockable.
During combat, if a Pirate you control is
unblocked, you may reveal a Pirate card
from your hand and pay {u/b}{u/r}{b/r}, If you do so,
return target unblocked attacking Pirate
you control to its owner's hand, put the
revealed card onto the battlefield from
your hand tapped and attacking. Activate this
ability only once per combat step.