Compose MaterialPhase Flame
Phase Flame is a 4★ material in Honkai: Star Rail — see how to get it, its use, and related items right below on this page.
Phase Flame is a material ★4 in Honkai: Star Rail. This item is not currently used to level up any character or Light Cone. Obtainable from 1 different sources in-game.
Last updated: 30/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
Description
Tier 4 Synthesis Material
Lore
Sserkal, #29 of the Genius Society, only lived 29 days by human measures of time. Despite that, she put her short life as a spider to good use, inventing new technologies that would have taken the spider-kind thousands of years to develop. Of all her inventions, the most famous must be the technique known as Phase Change. What people don't know is that this technique was first applied to experiments with ions. She successfully created Phase Flame, which almost immediately changed to another phase. By the time the Flame returned to the Sserkal Phase, our genius had already passed away. She tried to harness the Flame but had too little time to do so.
Thus, the Phase Flame continued to change between phases across different worlds, leaving behind the seeds of flame. "Sserkal's life was remarkable. She was smart, kindhearted, and above all, humble. She remained curious and inquisitive, asking her final question in the club on the last day of her life, the answer to which has not been found to this day."
Dropped By
How to obtain
- Robot Settlement: Automatons or other enemies
Stats
| Rarity | ★★★★ |
| Type | Compose Material |
| Stack limit | 99,999 |
Official names in every language
| Tiếng Việt | Linh Hỏa |
| English | Phase Flame |
| 日本語 | 位相霊火 |
| 한국어 | 위상의 불꽃 |
| 繁體中文 | 相位靈火 |
| 简体中文 | 相位灵火 |
Where to use it / Related tools
Phase Flame is an upgrade material — check the Material Planner to see how much you need for the character you're building.
Same-type items
FAQ
What is Phase Flame?
Tier 4 Synthesis Material
Where do you get Phase Flame?
Sources for Phase Flame: Robot Settlement: Automatons or other enemies. See the “How to obtain” section above for details on each source.
What type of item is Phase Flame?
Phase Flame is a 4★ material in Honkai: Star Rail, in the “Compose Material” category.
What is Phase Flame used for?
Phase Flame currently isn't listed as required by any character ascension, Light Cone ascension, or crafting recipe in official data.