The Seastrider is a pirate ship helmed by Captain Oscar Locke. She was known as the Bastard's Pride while helmed by Captain Kusotare until Kusotare was bested in a duel by Oscar and Susumu Kawamoto, with the former laying claim on the ship. The Seastrider accompanied her fellow Blue Dragon ships the Moldy Crow and the Morning Star on a voyage to find the missing cleric Unithien Greyrain after the Battle of Shipwreck Cove.