There is a filter on HSReplay when you're looking at Wild decks to only show decks that include at least one Wild-only card. Try that.
Also, they don't invent decks, they reflect what people are playing. If a certain set of filters shows no results, no-one (at least no one who uses HSReplay/HSDT) is playing decks that fit your criteria.
And yeah, Nerubian Unraveler = KoFT