The Blueblood Sword is created by giving Blacksmith Ed the Pureblood Demon's Soul, which can be created from an un-upgraded Broken Sword. As with the other Boss Soul Weapons, Blacksmith Ed must have been given the Red Hot Demon's Soul beforehand.
|One-handed R1||Horizontal cuts|
|One-handed R2||Thrust plus additional vertical cut with second input|
|Two-handed R1||Vertical cuts|
|Two-handed R2||Horizontal cut plus second horizontal cut with second input|
|Running/Backstep attack||Vertical cut|
|Rolling attack||Horizontal cut|
|One-handed L2||Horizontal cut|
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