Honkai: Star Rail Memory of Chaos Guide

In This Guide

• How to Unlock Memory of Chaos
• 12 Stages and Two Halves: How the Mode Is Built
• How Stars Are Earned by Cycle Count
• Rewards and Reset Schedule
• Preparing Two Teams and Picking Types by Weakness
• Strongest Characters in Memory of Chaos (Version 4.6)
• Common Mistakes That Cost You Stars
• Frequently Asked Questions

How to Unlock Memory of Chaos

Memory of Chaos sits inside the Forgotten Hall. To reach the part that refreshes every phase, you need to meet the three requirements below. If you follow the story at a normal pace, you’ll get there fairly early.

1. Reach Trailblaze Level 21This is the first endgame mode you can open. For comparison, Pure Fiction waits until Trailblaze Level 34.
2. Finish the Fleeting Lights missionThe mode has its own unlock mission. When it shows up in your list, do it right away instead of letting it sit there.
3. Clear Forgotten Hall Memory Stage 15Stage 15 is the last stage of the Forgotten Hall Memory series. Beat it and Memory of Chaos opens up.

12 Stages and Two Halves: How the Mode Is Built

Each phase has 12 stages, and Stage 12 is the hardest. Every stage is split into a first half and a second half. Each half has its own enemy lineup and needs its own 4-person team. In other words, every stage asks for 8 different characters.

A made-up example: say the first half is full of enemies weak to Fire and Ice, and the second half is weak to Wind. You’d send the team with a Fire or Ice DPS into the first half and the team with a Wind DPS into the second. Enemies, Weaknesses and the phase effect all change from phase to phase, so a team that full-stars this phase might not fit the next one. That’s the reason to build DPS of several Types over time.

How Stars Are Earned by Cycle Count

Memory of Chaos doesn’t score you on how many enemies you defeat, the way Pure Fiction does, or on how many actions you take, the way Apocalyptic Shadow does. All it cares about is how many Cycles you need to clear every enemy. Fewer Cycles means more stars, up to 3 per stage. Check the exact Cycle thresholds for each star in game before you start the fight.

A Cycle is the fight’s unit of time, while a turn is each time one character acts. So to use fewer Cycles, you either deal enough damage in fewer turns or squeeze more turns for your team into the same Cycle. What helps:

• SPD. The higher a character’s SPD, the more turns they get per Cycle. How to build it is in the Relics and stats guide.
• Weakness Break. Usually you have to hit an enemy’s Weakness to deplete its Toughness. Once it’s broken, the enemy’s action is delayed and your team gets more time to act. More in the Break and Super Break guide.
• Action Advance. Supports who push your DPS’s turn forward let the DPS attack more often within the same number of Cycles.
• Staying alive. One character going down mid-fight throws off your rhythm and drags the fight into extra Cycles. If a team keeps losing someone, add a healer or a shielder.

Rewards and Reset Schedule

Memory of Chaos resets on a Monday at 04:00 server time (UTC-5 on America, UTC+1 on Europe, UTC+8 on Asia). A phase lasts a few weeks. When it ends, the enemies change and you can earn every reward again from scratch. Check the exact end date in game, because the endgame modes don’t switch phases at the same time.

Don’t let your Jade Feathers pile up. Drop by the Priceless Jewels shop now and then and pick up anything you actually need. As for the Stellar Jade you collect, plan it around the banner you’re saving for with the Stellar Jade and pity guide.

Preparing Two Teams and Picking Types by Weakness

1. Check both halves firstBefore you pick anyone, look at which enemies sit in each half and what they’re weak to, then read the phase effect. Doing this first saves you from rebuilding your teams over and over.
2. Pick main DPS who hit the WeaknessA DPS that matches the Weakness depletes Toughness fast, and a Weakness Break delays the enemy’s action. An off-Type DPS can still fight, but you lose that edge and can easily run out of Cycles. You can look up each character’s Type on the characters page.
3. Pair two teams with no overlapThe two halves need 8 different characters. Plenty of strong teams lean on the same support, so pick a pair of teams that don’t clash from the start (see the table below).
4. Split your strength evenlyDon’t pack all your best characters into one half. If the other half runs out of Cycles, you still lose stars on that stage.
5. Make room for sustain when neededIf a team keeps losing someone, give one slot to a healer. Huohuo, Hyacine and Lingsha are all SS in this mode, and Gallagher is S+. With one of them on the team, deaths mid-fight become much less of a worry.

Strong Teams for This Mode (From the Site’s Character Pages)

Some pairs that don’t share anyone: the Silver Wolf LV.999 team with the Castorice team, or the Firefly team with the Himeko • Nova team. On the other hand, the Ashveil and Himeko • Nova teams both need Dan Heng • Permansor Terrae, and the Silver Wolf LV.999 and Evanescia teams both want Yao Guang and Pearl, so pick one from each of those pairs. Which team goes into which half still depends on that phase’s Weaknesses.

Strongest Characters in Memory of Chaos (Version 4.6)

This section follows the Memory of Chaos column of the site tier list, updated October 6, 2026:

Tiers here differ quite a bit from the overall list, so don’t judge by the overall tier alone. Firefly, Fugue, The Dahlia, Lingsha, Cyrene, Sparxie, Robin and Aventurine are only S+ overall but SS here. With Firefly, Fugue, The Dahlia and Lingsha all at SS, that Break team is a dependable pick for Memory of Chaos. Boothill misses the top two groups overall, yet still reaches S+ in this mode.

It works the other way too. Archer and Rin Tohsaka are SS overall but S+ here. The Herta is S+ overall and SS in Pure Fiction, yet only S in Memory of Chaos. Seele is S+ overall and Jade is SS in Pure Fiction, but here both are only A. If you already have them, they still do the job. Just don’t pull for them only to clear this mode.

Common Mistakes That Cost You Stars

Frequently Asked Questions

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