Creating New Features/Effects: All users (especially GMs) are encouraged to develop other creation options and methods for use in their own games. All materials should be built with the documented Incarna Game Design elements.
Groups are encouraged to adopt whatever Features works best for them – perhaps limiting their options of which a individual PC can take without group approval. This reduces overlap, encourages customization, encourages material familiarization, and expressly creates a circumstance which needs group cohesion even outside the game play itself.