Boss Guide · Honkai: Star Rail
How to Beat Phantylia the Undying
⚠ Extreme
Weak to:FireLightningWind
About Phantylia the Undying
The true form of the Abundance's blessing corrupted — a boss that cannot be killed normally and must be separated from her power source.
Attack Phases
1
Undying Form
Continuously heals to full HP unless the Immortal Luminary is destroyed.
- ›Abundance blessing
- ›Life drain
- ›Immortal regeneration
- ›Vine barrage
2
Severed from Abundance (below ~20% HP with Luminary destroyed)
Stripped of immortality — becomes mortal and beatable.
- ›Desperate assault
- ›Corruption field
- ›Final bloom
- ›Wither
Rewards
- •Spread of Spring Relic
- •Echo of War material
Weaknesses
FireLightningWind