We’re all really glad that you’re enjoying Gauntlet!
Thanks for bringing that word to our attention! The word “foolscap” is a technically correct but old-fashioned spelling of “fool’s cap,” aka a jester hat (this definition has actually been dropped from some dictionaries, but is still listed in others: http://www.merriam-webster.com/dictionary/foolscap). Since Gauntlet is full of callbacks to fairy tales and classic literature, the old-fashioned word fits with the tone of the story. So, we’ll probably keep it as-is.