Whisperknife is a prestige class in WotC 3.5 Races of the Wild book. Is "Whisperknife" a generic name that can be used in other products or is it IP and/or protected by copywriter?
I'm thinking of a prestige class for Pathfinder using the name but creating my own prestige class build/stats.
Moved thread.
You'd have to check the Product Identity declaration for Races of the Wild, but original names are better, if to at least avoid confusion among the audience.