Some of you have asked me what is 'Changing Star' in BaZi?
The term 'Changing Star' (变通星) is actually 'Ten Gods' (十神).
Some books prefer using Changing Star rather then Ten Gods.
Ten Gods is basically another layer of information derived from the basic structure of a bazi birth chart which consists of Yin Yang (阴阳) and the Five Elements (五行）.
To have some basic sensing of the Ten Gods and related topics, you can check it out at my YouTube Channel BaZi Insider here.