5★ (Ruan Mei signature) Harmony Light Cones (5★)
Past Self in Mirror — Best Characters in 2026
Boosts Break Effect and team damage; enables her super Break-buff playstyle. Ruan Mei's best-in-slot.
Best Characters for Past Self in Mirror in 2026
- Ruan Mei Ruan Mei build guide →
- Harmony buffers
How to get the most out of it
Ruan Mei's signature. It boosts Break Effect and team damage, powering her Super Break-buff playstyle. Nearly mandatory for a Break-core Ruan Mei.
Alternatives & Similar Harmony Light Cones (5★)s
Frequently Asked Questions
Who should use Past Self in Mirror?
It is best on Ruan Mei, Harmony buffers. Boosts Break Effect and team damage; enables her super Break-buff playstyle. Ruan Mei's best-in-slot.
Is Past Self in Mirror worth pulling?
Only if the characters above are core to your account. The gap between a signature weapon and a refined 4-star alternative is usually 10-20%, which is less valuable than an additional character.
What are the alternatives to Past Self in Mirror?
Other strong harmony light cones (5★) options include But the Battle Isn't Over, Flowing Nightglow, Earthly Escapade, A Grounded Ascent.