Huazang Fan Sheng is one of the laziest events in Star Rail: no grind, no spending, just point your daily power at a Calyx and collect double. But picking the wrong Calyx, or assuming the charges refresh daily, halves the value. This guide totals the power available across the 12-day window, orders Golden versus Crimson by progression stage, and answers the recurring questions about whether charges stack and whether weekly bosses qualify.
| Item | Verdict | Basis |
|---|---|---|
| Event window | 2026-10-30 04:00 to 2026-11-11 03:59 | Official event notice |
| Eligible domains | Calyx (Golden) and Calyx (Crimson) | Official event notice |
| Entry requirement | Complete the adventure mission "Calyx (Golden): Bud of Memories" | Official event notice |
| Double charges | Limited, no daily reset during the event | Official event notice |
| Trailblaze Power | 240 per day, 1 per 6 minutes | In-game rules |
Applicable version: 4.6.1 (updated 2026-09-29), Huazang Fan Sheng live 2026-10-30
HSR Huazang Fan Sheng rules: two domains only
The rules are short, but two details trip people up.
Double applies to Calyx only
During the event, clearing Calyx (Golden) or Calyx (Crimson) grants double rewards: after spending a double charge and Trailblaze Power you receive one extra reward on top of the normal drop . Note it is an extra reward, not a rewritten drop table, so there is no "hold your runs and wait for compensation" angle.
The entry gate is an adventure mission
You need the adventure mission "Calyx (Golden): Bud of Memories" completed . New accounts should clear it first; it takes minutes and the window is 12 days.
Charges do not reset
The official notice states plainly that double-reward charges do not reset during the event and asks players to schedule their runs (source: official event notice). Charges are a total, not a daily allowance, so "run two a day and save the rest" is not a thing.
HSR Trailblaze Power budget: how many runs across 12 days
Lay out the power before deciding anything.
| Item | Value | Source tier |
|---|---|---|
| Event window | 2026-10-30 04:00 to 2026-11-11 03:59, about 12.5 days | Official event notice |
| Daily Trailblaze Power | 240 (1 per 6 minutes) | In-game rules |
| Natural power in window | About 3,000 | 12.5 days at 240 per day |
| Daily mission top-ups | Per the in-game mission panel | In-game rules |
| Double charge cap | Per the event panel (official notice gives no count) | Official event notice |
Runs per day
Per-domain power cost is shown in game. At 240 a day the number of runs is fixed, so the real variable is Golden versus Crimson, not run count.
When double is most valuable
Double means one extra reward, independent of drop quality. So it is most valuable when you already need the material. If nobody on your roster needs character EXP, pushing charges into Golden Calyx is waste.
HSR Golden vs Crimson Calyx: which first
The two Calyx lines feed completely different progression.
Golden Calyx: EXP and credits
Golden Calyx drops character EXP materials and credits. Both are universal, every new character eats them, so priority peaks around a version launch .
Crimson Calyx: Trace materials
Crimson drops Trace materials. They only matter when you have a specific character whose Traces are not maxed. Farm Crimson before deciding who to build and you end up with materials nobody uses.
Recommended order
Golden then Crimson. Use Golden charges on characters you have already committed to, and fill Crimson once the roster is settled. If no new character is coming in those 12 days, put everything into Golden.
HSR 4.6 roster: who to spend double charges on
The headliner of 4.6 is Pearl (Elation, Ice), with reruns alongside .
Pearl's Trace priority
For an Ice Elation unit, core skills come first and basic attacks last. Trace materials come from Crimson Calyx and weekly bosses, so if Pearl is on your list, reserve part of the Crimson budget.
Judging reruns
Build a rerun only if your team has an empty slot for that role. With a finished roster, all-Golden is the safer allocation because Golden output benefits every character.
HSR Huazang Fan Sheng: should you bother
Verdict first: everyone should participate, it is free resource doubling. The only real difference is which Calyx.
New character incoming
Split Golden and Crimson. Level first with Golden, then Traces with Crimson; reverse it and you end up with maxed Traces on an under-levelled unit.
No new character, main team maxed
All Golden, banking EXP and credits. Credits become the scarcest resource late game, and a stockpile carries into the next version.
Returning player
Clear "Calyx (Golden): Bud of Memories" first, then use the remaining days. Twelve days is enough for a returning account.
HSR Huazang Fan Sheng checklist
Follow the order and nothing gets missed.
- Confirm "Calyx (Golden): Bud of Memories" is complete.
- Open the event panel and note the remaining and maximum double charges (the official notice gives no count).
- Put all 240 daily Trailblaze Power into Calyx, nothing else.
- New character: Golden then Crimson. No new character: all Golden.
- Clear the charges before 2026-11-11 03:59; unused charges do not carry.
HSR Huazang Fan Sheng FAQ
Do double charges reset daily?
A: No. The official notice states charges do not reset during the event, so plan against the total.
When does Huazang Fan Sheng end?
A: It ends 2026-11-11 03:59 and started 2026-10-30 04:00, a window of roughly 12.5 days .
Do weekly bosses or Relic domains get double?
A: No. Double applies only to Calyx (Golden) and Calyx (Crimson); weekly bosses and Relic domains drop normally .
How many runs does 240 power cover?
A: Trailblaze Power recovers 1 per 6 minutes with a 240 cap; per-run cost is shown in game, so the daily run count is fixed at 240 power.
Action list
- Complete "Calyx (Golden): Bud of Memories."
- Note the double charge cap from the event panel.
- Spend all 240 daily Trailblaze Power on Calyx.
- New character: Golden then Crimson. Otherwise all Golden.
- Clear charges before 2026-11-11 03:59. Star Rail moves fast between events; gghubs.com lists every limited window with its closing time so you do not miss one.