. "A keycard that lowers the barrier surrounding Professor B."@en . "The Gray Keycard is an Important Item in Xenoblade Chronicles X. It is obtained by defeating the Marnuck Hunter, and is required to complete Professorial."@en . "Common"@en . . . . . "---"@en . "The Gray Keycard is an Important Item in Xenoblade Chronicles X. It is obtained by defeating the Marnuck Hunter, and is required to complete Professorial."@en . "Gray Keycard"@en . .