Christopher F. Ash is a long-time player of Dungeons & Dragons. He has played the game from the basic set and AD&D on through to the current Fourth Edition of D&D. A big fan of the "Player's Option" books published by TSR for Advanced Dungeons & Dragons, Christopher eagerly anticipated a similar product for 4th Edition from Wizards of the Coast. When no such product materialized, he decided to write one himself. Combat in Motion constitutes the foundation rule set for a complete "Enhanced" version of the 4E game. It was written and extensively beta-tested over a four year period. Coming products include Enhanced monster themes and a book of Enhanced Feats and Powers.