[Cast Cost] Pay 2 gauge & Destroy one [Ghost] X-Cell Monster on your field. If you have 10 or more cards in your bind zone, you may cast this card without paying the gauge in the [Cast Cost]. [Counter] Call one Class 2 or less X-Cell Monster with "Umbral Walker" in its card name from your extra deck in [Rest] without paying the [Tribute] in its [Call Cost]!! (This call is not treated as a X-Cell Call.) You can only cast "Despair's Renewal" once per turn.