Ferox ADV and Diversion

jamesatzephyr wrote:

www.vekn.net/general-rulings

When played, a split Discipline card counts as requiring the Discipline being used (for effects that enhance or restrict cards that require certain Disciplines). In the hand (or library or ash heap), the card can be considered to require either Discipline (for effects that retrieve cards that require certain Disciplines). [LSJ 20020510]