Grouulbrand's Galleon

Pirate Ship 3
When Grouulbrand's Galleon enters the battlefield, you may search your library
for a card named Captain Grouulbrand
If you do, shuffle your library and place it on top.
Crew 5
Legends say that the first sign of death is Grouulbrand's Galleon. The second sign is Captain Grouulbrand.
There is no third sign.