an orator who can hold his listeners spellbound
Spellbinder (also known as Waving Hands) is a 1977 pencil-and-paper game that was invented by Richard Bartle and first published in his fanzine Sauce of the Nile. It has since been re-created in a variety of formats, including X-Windows, play-by-email, Java applet, and web-based.
Spellbinder is an adventure game, released for the BBC Micro and Acorn Electron in 1987. The player took the role of a Magelord, named Eldon the Spellbinder. His task was to find the evil Magelord outcast Zorn, in the castle of Lorraine, and defeat him by use of the so-called Ultimate Spell.