You can access the mod's design document https://docs.google.com/document/d/1jLy_U86kv65p_1gFheKMdah6Y3GJRhyPiFeizdpbEDk
As well as a comprehensive list of all hybrids https://docs.google.com/spreadsheets/d/1QxyHvaZ2zrut7xdD0D6rdJTjVoyxjG0FXPUSwZxvSVo