Even in 2026, with Amphoreus, the Xianzhou ships, and whatever new cosmic drama HoYoverse has thrown at us, I still find myself returning to The Xianzhou Luofu for one stubborn relic set: Longevous Disciple. It is not the flashiest set in Honkai: Star Rail. It does not scream from the top of a tier list. But for the right characters, it is a quiet, reliable engine—a set that turns Max HP and CRIT Rate into a slow-burning advantage. I first unlocked it during Version 1.2, and as of 2026, the method has not changed.

How I Unlocked The Longevous Disciple Relic Set

To get Longevous Disciple, I had to clear the Path of Elixir Seekers Cavern of Corrosion. That is the only reliable farming spot for the set. If you have not finished the new Trailblaze Missions in The Xianzhou Luofu, the cavern may not even appear on your map. I learned that the hard way: I ran around Alchemy Commission like a moth trapped in a lantern, wondering why the game refused to show me the entrance.

In the Version 1.2 Travel Log, the key mission chain is Topclouded Towerthrust. It requires four different missions in The Xianzhou Luofu: Desolate Depths of Despair, Dragon Mislay Dreams Astray, Oblation Obtained Order Ordained, and A Dragon Gallant Its Ocean Distant. Most of these are story-driven, with little puzzle solving and only moderate battles. The final mission, A Dragon Gallant Its Ocean Distant, ends with a fight against Phantylia the Undying. I remember that battle clearly. Luckily, the game lets you use Jing Yuan for free, and his AoE damage makes the encounter far more manageable.

Once those missions are done, I opened my map and went to The Xianzhou Luofu. At the bottom, I selected Alchemy Commission and scrolled toward the very bottom of the map. Just left of the Medicine Bureau Space Anchor, the Cavern of Corrosion: Path of Elixir Seekers appears. I navigated to that point, walked forward, and took a left. The cavern is tucked into an alleyway. Unlocking it felt like finding a speakeasy behind a noodle shop—no grand sign, just a suspicious turn and a door that only opens for players who did their homework.

Best Team For The Path Of Elixir Seekers

When I farm this cavern, I bring at least one Ice character and one Wind character. That combination makes the enemies much easier to handle. Recommended options include Dan Heng, Yanqing, March 7th, and especially Sampo, who can apply DoT statuses to enemies. In 2026, a well-built modern roster can brute-force almost anything, but if you are still building your account, Ice and Wind coverage is the smooth path.

Who Should Use Longevous Disciple?

There is usually a reason someone farms Longevous Disciple: they want to give it to a character who benefits from a boost to Max HP and is often vulnerable or targeted by attacks. The 2-piece bonus increases Max HP by 12%. The 4-piece bonus increases CRIT Rate by 8% for 2 turns when the wearer is hit or an ally consumes HP, stacking up to 2 times. That makes it ideal for characters who live on the edge of danger.

Character	Rarity	Element	Path	Why Longevous Disciple Works
Blade	5-Star	Wind	Destruction	He scales with HP, wants CRIT, and gets hit often enough to trigger the 4-piece bonus.
Arlan	4-Star	Lightning	Destruction	He consumes his own HP, making the 4-piece condition easy to meet.

At the time the set arrived, Blade and Arlan were the clearest winners. In 2026, that has not really changed. Blade wearing Longevous Disciple is like giving a cactus a bigger pot: he was already prickly, but now he has room to grow. Arlan, meanwhile, is a budget option who can still put in work if you invest in him.

Quick Tips I Wish I Knew

• Finish Topclouded Towerthrust first, or the cavern will stay hidden.

• Bring Ice and Wind units; Sampo is a standout for DoT pressure.

• Farm only after unlocking the Alchemy Commission waypoint for faster runs.

• Use 2-piece Longevous Disciple on any HP-hungry unit, even if you skip the 4-piece.

• In 2026, relic crafting can patch bad RNG, but the cavern is still the main source.

Final Thoughts

Farming Longevous Disciple is less a treasure hunt and more like panning for gold in a river that occasionally hands you a nugget. The cavern is not hidden because the game is cruel; it is hidden because Honkai: Star Rail loves making you earn your gear. If you are a new player in 2026, finish Topclouded Towerthrust, unlock the Alchemy Commission cavern, bring Ice and Wind, and start farming. If you are a returning player, the route is still the same. I still run it when I need HP-scaling pieces, and I suspect I will keep running it for a while yet.