The best Honkai: Star Rail March 7th build focuses on boosting the archer's shields and her ability to freeze enemies before they get those powerful attacks off. One of the things that March 7th is good at is protecting allies, and countering any enemy that tries to harm them. Her abilities boost your chances of surviving, especially in the earlier part of the game when you don't have access to a healer.
I'm not even sure you need a healer most of the time when you have a well-built March 7th in your roster, since she provides a steady stream of shields that bait enemies into attacking them. Here, I'll walk you through what I recommend in terms of light cones, relics, and planar ornaments if you want to maximise her shield strength and ability to freeze.
