“"Embrace the change."”
—Lady Gisela, in Legacy
Keefe's Legacy is a legacy Lady Gisela has mentioned several times to Keefe. A lot of it remains mysterious. Lady Gisela's Nightfall may have something to do with it. It also may have something to do with Keefe’s mysterious ability, which has, as of Legacy, not been revealed. There is also a theory that Keefe's ability will be the ability to block or take away other abilities because in Flashback when the full spectrum and Shadowflux were mixed Ruy could not make his force fields.