Ornithosaur oil

"This oil, sometimes called Basilisk Bane, contains a poison that is deadly to all reptiles. Even the Basilisk, which possesses its own venom and is resistant to poisons, cannot withstand a blade coated with this substance."

A blade coated with Ornithosaur oil inflicts increased damage on ornithosaurs. Damage inflicted on ornithosaurs is increased by 100%.