A comprehensive guide with optimized team strategies, alternative compositions, and actionable tips to conquer Honkai Star Rail 3.3 Memory of Chaos stages 11 and 12.
Introduction to Memory of Chaos 3.3
The latest rotation for Honkai Star Rail’s Memory of Chaos (also known as the Forgotten Hall) has arrived with version 3.3. This endgame challenge mode consistently tests players’ strategic team-building and execution skills. The primary objective remains unchanged: eliminate all adversaries across both halves of a stage within a strict limit of 30 total action cycles to claim full rewards. Success hinges on constructing squad compositions that directly counter the specific elemental vulnerabilities of each wave’s enemies. This guide will provide detailed team recommendations, substitution options, and advanced tactics to secure a swift and complete clear of the current cycle’s stages 11 and 12.
Stage 11 First Half: Pollux & Netherwing Husk
The initial phase of Memory of Chaos Stage 11 pits you against the Pollux and Netherwing Husk Ferry of Souls boss. This enemy trio is notably susceptible to Wind, Quantum, and Imaginary damage types. Capitalizing on these weaknesses is crucial for a fast clear.
Castorice Premium Team: A top-tier composition for this half centers on Castorice. Her team can potentially achieve a ‘zero-cycle’ clear, meaning victory within the first cycle. The Remembrance Trailblazer is essential here for applying key debuffs. The ideal premium setup pairs them with Tribbie and Hyacine. If you lack these specific units, effective replacements include Ruan Mei for Tribbie’s buffer role, and Gallagher or Luocha to substitute for Hyacine’s healing and support capabilities.
Mydei Hypercarry Alternative: Mydei functions as a formidable Imaginary hypercarry DPS and is an excellent choice here. His optimal squad includes Sunday, Tribbie, and a sustain unit like Luocha. Sunday’s action advance allows Mydei to build Charge stacks faster, accelerating his powerful “Godslayer be God” attack. Should you not have Sunday, Sparkle is a viable alternative. Tribbie can similarly be swapped for Ruan Mei or even the Remembrance Trailblazer if needed.
Also read: How to play Mydei in Honkai Star Rail: Abilities, ideal stats, playstyle, and rotation guide
Common Pitfall to Avoid: A frequent mistake is bringing a healer without cleanse capabilities against the Netherwing Husk, which can inflict crowd control. Ensure your sustain unit (Luocha, Huohuo, Gallagher) can remove debuffs, or bring a character like Lynx as a substitute healer.
Stage 11 Second Half: Stellaron Hunter Sam
The second half of Stage 11 features the formidable Stellaron Hunter Sam as the boss, who bears weaknesses to Lightning, Quantum, and Imaginary damage. Teams specializing in these elements will excel.
Aglaea Lightning Team: Aglaea stands out as a premier Lightning AoE DPS capable of dealing massive damage to Sam. Her ideal team composition leverages her area-of-effect prowess. Robin is a fantastic support partner for her, but if unavailable, Ruan Mei serves as a strong replacement, offering different but valuable damage amplification and break efficiency.
Acheron Nihility Team: Acheron, another powerhouse Lightning AoE DPS, is perfectly suited for this fight. Her peak performance is achieved with dedicated Nihility supports like Jiaoqiu and Cipher, who stack debuffs to fuel her unique mechanics. If you don’t possess them, you can effectively substitute with other debuffers such as Black Swan, Pela, or even Silver Wolf to maintain the necessary debuff count for Acheron’s enhanced abilities.
Support Substitution Strategy: When replacing key supports, understand the role you’re losing. Replacing Robin (damage boost, energy) with Ruan Mei (break efficiency, all-damage boost) changes your rotation. Practice the new skill point economy and ultimate timing in a calmer battle first to avoid cycle waste in the timed challenge.
Stage 12 First Half: Swarm: True Sting
The first half of Stage 12 confronts you with the Swarm: True Sting boss and its accompanying minor mobs. All enemies in this wave share weaknesses to Ice, Quantum, and Imaginary elements, allowing for highly focused team building.
Castorice Quantum Exploitation: Given the universal Quantum weakness, a team led by Castorice is arguably the most straightforward path to victory. Both Castorice and her Memosprite deliver potent AoE damage, which is indispensable for clearing the swarm adds while damaging the main boss. Hyacine is her best-in-slot healer, but Luocha remains a top-tier replacement. Tribbie can also be substituted with Ruan Mei for a different buff profile focused on break effect and speed.
Mydei Imaginary Alternative: The Swarm’s Imaginary weakness also makes Mydei a stellar choice. His AoE capabilities allow him to cleave through the smaller enemies efficiently. His premier team consists of Sunday, Tribbie, and Luocha. Sunday’s constant action advance helps Mydei generate Charge rapidly for his ultimate. If Tribbie is unavailable, Ruan Mei or the Remembrance Trailblazer are suitable stand-ins, though their buffs will differ.
AoE Positioning Tips: Against swarm-type enemies, positioning your AoE attacks is key. Try to group minor enemies by using the boss as a central point. Some characters’ abilities have specific blast shapes; learn them to maximize the number of targets hit per attack, saving valuable cycles.
Stage 12 Second Half: Borisin Warhead Hoolay
The final challenge of this rotation is the Borisin Warhead Hoolay, a tough boss in Stage 12’s second half. Hoolay’s defensive gaps are Wind, Fire, and Physical damage types, guiding your team selection.
Feixiao Follow-Up Attack (FUA) Team: A team built around Feixiao’s Follow-Up Attack mechanics can dominate this fight. Feixiao is a powerful damage dealer on her own, and her synergy with Cipher is exceptional, as Cipher can significantly enhance FUA damage. Robin’s presence further increases the team’s attack frequency. If Cipher is not on your roster, other FUA-focused characters like Topaz (and Numby) or even Clara can fill the role, though the team dynamic will shift towards dual-carry.
Anaxa Hypercarry Team: Anaxa serves as a potent hypercarry DPS against Hoolay, particularly due to his ability to delay enemy actions and disrupt Hoolay’s multi-turn sequences. His most recommended team includes Sunday, Robin, and Huohuo for maximum energy and damage amplification. If you lack Sunday or Robin, they can be replaced with Bronya (for critical damage and action advance) and Tribbie (for general damage buffs), respectively, though this may require more careful skill point management.
Turn Control Mechanics: Hoolay is dangerous when he takes consecutive turns. Using characters like Anaxa, Welt, or even the Remembrance Trailblazer’s freeze can interrupt his sequence. Prioritize breaking his toughness bar with Wind/Fire/Physical attacks to inflict Weakness Break, which is a guaranteed turn delay and damage window.
Advanced Optimization & Pro Tips
Cycle Management: The 30-cycle limit is generous but can be lost on failed attempts. For stages with adds, use AoE ults to clear trash mobs quickly. Save single-target burst skills and ultimates for the boss phase. If you’re cutting it close, consider restarting the stage to optimize your early cycle actions.
Gear & Stat Priorities: For DPS units, ensure your Crit Rate is at least 70% before stacking Crit Damage. Support units like Ruan Mei and Tribbie want high Speed and Break Effect. Sustain units need enough Speed to act between enemy attacks and sufficient Effect RES to avoid being controlled. Don’t neglect planar ornament sets like ‘Firmament Frontline: Glamoth’ for DPS or ‘Broken Keel’ for supports.
Energy Rotation Fine-Tuning: Know the energy costs of your key ultimates (e.g., 130 for Acheron, 140 for many others). Use characters like Tingyun, Huohuo, or energy regeneration relics (like ‘Sprightly Vonwacq’) to ensure crucial ultimates are available when needed, often enabling a kill before the boss gets a dangerous turn.
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