You have seen the teaser. Now watch the official trailer for Marvel Studios’ Shang-Chi and the Legend of the Ten Rings. In the last teaser, we get a glimpse of the mystical Ten Rings, but in this nearly 2-minute trailer we get to see it in action quite a few instances.
Marvel Cinematic Universe has entered into Phase 4 this year, which, for the first time, covers both TV series and movies. The Shang-Chi and the Legend of the Ten Rings is part of it.