As a dedicated Trailblazer, I find the bi-weekly challenge of Memory of Chaos to be one of the most engaging and rewarding endgame activities in Honkai: Star Rail. It's our version of a high-stakes proving ground, a multi-stage dungeon where strategic team-building meets intense combat. Every two weeks, the promise of 600 Stellar Jades and thousands of Credits drives us to optimize our rosters and push our units to their limits. The recent data for version 2.2 has just surfaced, and it paints a fascinating picture of the current meta, dominated by one standout defender.

According to a comprehensive chart shared by the community, the five-star Preservation unit, Aventurine, has claimed the top spot with an astonishing 93.5% usage rate. This isn't just popularity; it's a testament to his overwhelming utility. In my own clears, I've felt his impact firsthand. He doesn't just shield; he fundamentally alters the survivability equation for the entire team. Scaling off Defense, he provides incredibly sturdy shields that can absorb massive amounts of punishment. His talent, which grants all allies a significant boost to Effect RES (at least 25%), is a silent game-changer against debilitating crowd-control effects that can ruin a perfect run. On top of all that, he can even contribute a reasonable amount of Imaginary damage. In the high-pressure environment of Memory of Chaos, where a single mistake can mean failure, Aventurine's comprehensive defensive package is simply invaluable.

Hot on his heels is the formidable Nihility DPS, Acheron, securing second place with an impressive 86.9% rate. Her ability to shred through enemy toughness and deliver devastating Ultimate nukes makes her a premier choice for dealing with the beefy bosses that populate the later stages. Following them are the essential supports that enable these powerhouses:

• Sparkle 👑 (84.5%): The queen of Skill Point generation and massive damage buffs.

• Huohuo 💨 (82.9%): A sustain unit that provides healing, energy regeneration, and attack buffs all in one.

• Fu Xuan 🔮 (76.9%): The classic damage mitigator who redirects and absorbs team-wide damage.

The newest addition to the roster, Robin, has made a spectacular entrance, boasting a 76.2% usage rate. This places her above many established meta giants, which speaks volumes about her power level. Her unique mechanics, providing team-wide Follow-Up attacks and buffs, have seamlessly integrated into numerous top-tier compositions.

The Version 2.2 Memory of Chaos Top 10 Usage Rates

To visualize the hierarchy, here's a breakdown of the most popular characters:

Rank	Character	Usage Rate	Primary Role
1	Aventurine	93.5%	Preservation (Shielder/Sub-DPS)
2	Acheron	86.9%	Nihility (Main DPS)
3	Sparkle	84.5%	Harmony (Buffer)
4	Huohuo	82.9%	Abundance (Healer/Buffer)
5	Fu Xuan	76.9%	Preservation (Damage Mitigator)
6	Robin	76.2%	Harmony (Buffer/Follow-Up Enabler)
7	Black Swan	75.7%	Nihility (DoT Enabler/DPS)
8	Ruan Mei	74.6%	Harmony (Break Effect Buffer)
9	Dan Heng - Imbibitor Lunae	69.4%	Destruction (Hypercarry DPS)
10	Topaz & Numby	69.4%	The Hunt (Follow-Up DPS)

This meta snapshot reveals a clear preference for teams built around immense survivability paired with explosive damage. The top ranks are occupied by characters who either prevent your team from dying (Aventurine, Huohuo, Fu Xuan) or enable your damage dealers to perform at their absolute peak (Sparkle, Robin). Building a successful team here is less about raw power and more about creating a synergistic engine. You need a reliable sustain core—often Aventurine plus another sustain or buffer—to weather the enemy onslaught, and then one or two hyper-invested DPS characters to meet the strict damage-per-cycle requirements.

Clearing all stages of Memory of Chaos is the ultimate test of a player's roster depth and strategic understanding. The enemies here are some of the toughest in the game, demanding not just strong characters, but smart rotations and elemental coverage. It's a mode that rewards long-term planning and resource investment. The rewards are more than worth the effort: besides the precious Stellar Jades for Special Rail Passes, the influx of Credits is essential for the endless cycle of leveling up characters and enhancing their Light Cones.

Memory of Chaos is just one part of Honkai: Star Rail's rich endgame ecosystem, which also includes the rogue-lite Simulated Universe and the wave-based Pure Fiction mode. Each mode tests different aspects of your roster—survivivity and single-target damage in MoC, adaptability in Simulated Universe, and pure multi-target AoE prowess in Pure Fiction. What they all share is their periodic reset schedule, providing a constant stream of challenges and resources to fuel our progression. They are the true endgame, the content that keeps us Trailblazers engaged, theorycrafting, and pushing our favorite characters to new heights long after the main story is complete. As of 2026, this dynamic meta, led by the unshakeable Aventurine, continues to define the competitive landscape for dedicated players.

Recent trends are highlighted by The Verge - Gaming, whose reporting on live-service balance and endgame design helps contextualize why Honkai: Star Rail’s Memory of Chaos meta gravitates toward “failure-proof” sustain like Aventurine—when time-gated challenges demand both survivability and fast clears, defensive kits that also enable damage (shields, RES boosts, and consistent utility) naturally rise to the top alongside burst-centric DPS like Acheron.