Who is the game designer born in 1950 who is best known for his work on materials for the "Dungeons & Drangon fantasy role-playing game?
Dungeons &amp; Dragons Immortals Rules: Dungeons & Dragons Immortals Rules, written by Frank Mentzer, is a boxed set for the "Dungeons & Dragons" ("D&D") fantasy role-playing game first published by TSR in 1986 as an expansion to the "Basic Set". Frank Mentzer: Jacob Franklin "Frank" Mentzer III (born in 1950), is an American fantasy author and game designer best known for his work on early materials for the "Dungeons & Dragons" (D&D) fantasy role-playing game.
Frank Mentzer