This sourcebook presents everything that players need to create a Combiner character, as well as everything a Game Master needs to run a Combiner campaign. This sourcebook introduces a multitude of new Influences, Origins, and Role Focuses to help build your character. There are several methods your characters can use to join with others, be they Binary Bonded or a member of a Gestalt Team. Explore how to run your own Combiners campaign and JOIN TOGETHER! The Enigma of Combination requires the Transformers Roleplaying Game Core Rulebook to use. Features: New character options including new influences, Origins, and Role Focuses; Several methods Transformers characters can use to join with others, be they Binary Bonded or a member of a Gestalt Team; New gear, including methods to make existing weapons larger and more deadly; Advice on running a Combiners campaign, including plot hooks, threats, and allies