Signature Spellcrafting: The Art of Presentation is a small 12-page system-agnostic role-playing game supplement that includes a signature spell worksheet. It is available as a free PDF download via DriveThruRPG.
If you are the player of a spell-casting character seeking to personalize your magic, a game master pondering new and wondrous magical effects for powerful artifacts, or a game creator just looking for an intriguing method of designing creative spell descriptions, this book is intended for you.
Herein you will find a system-agnostic method for creating vibrant and descriptive spell effects. Without affecting the existing mechanics of whatever role-playing game platform your game utilizes, signature spellcasting provides a means of creating unique themes and styles for the visual representation of magic revealed.
You can get this product for Free (pay what you want) exclusively at DriveThruRPG.