My 2026 Guide to Undying Starlight and Undying Embers in Honkai: Star Rail
I still remember the first time I opened the Warp screen in Honkai: Star Rail. The stars spun, the train whistled somewhere in the distance, and two little currencies started piling up in my inventory: Undying Starlight and Undying Embers. I thought they were the same thing. They are not. If you are staring at your account in 2026 and wondering why your pulls keep giving you strange coins instead of the character you wanted, pull up a chair. I have been there, and I have the receipts.

Honestly? I ignored both currencies for my first month. Then I realized the Starlight Exchange and Embers Exchange shops were quietly offering passes, characters, Light Cones, and credits. That was the day my frugal Trailblazer heart woke up.
How To Get Undying Starlight
Undying Starlight is the shiny, higher-tier exchange currency. It does not drop from chests. It does not appear in daily missions. It only comes from one place: pulling on Warp banners with Star Rail Passes or Star Rail Special Passes. The banners do not hand out charity; they hand out duplicates. And every duplicate is a tiny letter of apology from the gacha gods.
Here is the breakdown I wish I had taped to my monitor.
Undying Starlight From Duplicate Characters
| Duplicate Type | Undying Starlight Reward |
|---|---|
| 4-star character, 2nd to 7th duplicate | x8 per duplicate |
| 4-star character, 8th duplicate and onward | x20 per duplicate |
| 5-star character, 2nd to 7th duplicate | x40 per duplicate |
| 5-star character, 8th duplicate and onward | x100 per duplicate |
So yes, pulling the same 4-star healer six times feels bad... until you remember those x8 stacks are adding up. The real jackpot is a 5-star duplicate. The first copy gives you the character. The second copy gives you x40 Starlight. By the eighth copy, the game basically throws a parade of x100 at you. I have never reached that point myself, but I dream.
Undying Starlight From Light Cones
Light Cones are the other half of the equation. Whenever a banner gives you a Light Cone, Undying Starlight comes with it.
| Light Cone Rarity | Undying Starlight Reward |
|---|---|
| 4-star Light Cone | x8 |
| 5-star Light Cone | x40 |
That means even a disappointing 4-star Light Cone is not completely wasted. It is just a future Star Rail Pass in disguise. A very slow, very patient disguise.
Starlight Exchange Shop Rewards
Once you have enough Undying Starlight, you can visit the Starlight Exchange Shop. This shop is where the currency finally grows legs and does something useful. The rewards rotate on a monthly basis, so I always peek at it after a big banner session. In 2026, the core offerings still include:
| Reward Type | Why It Matters |
|---|---|
| Star Rail Pass | Standard banner pulls |
| Star Rail Special Pass | Limited banner pulls |
| Characters | Rotating 4-star characters |
| Light Cones | Rotating Light Cones |

I usually spend my Undying Starlight on Star Rail Special Passes. Limited banners are where my heart lives, even when my luck does not. If you are a newer player, though, a rotating 4-star character or Light Cone can be a better deal. The shop changes monthly, so do not treat it like a permanent museum. Treat it like a pop-up stall that might vanish.
How To Get Undying Embers
Undying Embers are the smaller, humbler cousin of Undying Starlight. They flicker into your inventory whenever you pull a 3-star Light Cone from any Warp banner. Every single 3-star Light Cone gives you x20 Undying Embers. That is it. No secret boss, no hidden quest, no magical chest. Just Warp, Warp, Warp.

Here is the kicker: because 3-star Light Cones are so common, Undying Embers pile up faster than Undying Starlight. I once did a 10-pull and walked away with a small mountain of Embers and exactly zero new characters. The gacha giveth, and the gacha taketh away.
Embers Exchange Shop Rewards
The Embers Exchange Shop is where Undying Embers go to become something better. You can trade them for:
| Reward Type | What It Does |
|---|---|
| Star Rail Pass | Standard banner pulls |
| Star Rail Special Pass | Limited banner pulls |
| Credit | Upgrade materials, traces, and more |
| Other rotating items | Extra resources and useful consumables |
I always clear the Star Rail Special Passes first. After that, Credits are a safe fallback because every Trailblazer is secretly broke. Trust me, I learned the hard way after trying to level three characters at once.
Final Thoughts From A Fellow Trailblazer
Undying Starlight and Undying Embers are not glamorous. They are the quiet janitors of the Warp system, sweeping up your duplicates and turning them into something useful. In 2026, the rhythm is still the same: pull banners, collect the leftovers, and spend smartly before the monthly shop rotates.
If you are new, do not panic when you see a 3-star Light Cone. It is not a loss. It is x20 Undying Embers, and it is one step closer to a pass. If you are a veteran, you already know the pain of a 5-star duplicate... and the strange joy of x100 Undying Starlight.
May your Warps be kind, your duplicates be profitable, and your Embers never sit idle. 🚂✨