★★
Four Phases, Crossing the River to Check the King
Four Phases, Crossing the River to Check the King is a 2★ material in Honkai: Star Rail. See how to obtain it and which characters/light cones need it below.
Farm it smart & the pain
A Trace (skill tree) material. Harsh truth: traces devour materials late-game, especially levels 8–10. Do not level evenly — pour into Skill/Ultimate (your main damage) first, Basic ATK last.
Material Planner →How to obtain
- Calyx: Inkford Hermitage
- Embers Exchange
- Omni-Synthesizer — Material Exchange