Lushaka, The Sunken Seas: Lore, Hidden Mechanics, And 5 Best Characters To Use This NEW Relic Set
The mysteries of the cosmos in Honkai: Star Rail are often hidden in plain sight, and few items hold as much deep lore and mechanical power as the Planar Ornament set, Lushaka, the Sunken Seas. Since its introduction in a recent major update, this Relic Set has completely redefined how players approach team composition and Energy Regeneration for their support units. As of today, December 22, 2025, understanding its dual-purpose effect—a massive Energy boost combined with a unique Attack buff—is crucial for maximizing your team's potential in the toughest endgame content.
This comprehensive guide dives into the latest information surrounding the Lushaka set, from its dark, submerged world origins tied to the Penacony storyline to the specific characters who can leverage its powerful, often-overlooked party-wide buff. If you are farming the Divergent Universe: Famished Worker, this is the essential breakdown you need to optimize your builds.
Lushaka, The Sunken Seas: Deep Lore and Penacony's Sunken History
The name "Lushaka, the Sunken Seas" is more than just a title for a powerful Planar Ornament; it is a direct reference to a tragic, submerged world that plays a crucial, though often hidden, role in the larger narrative of Honkai: Star Rail.
The Drowned Planet of Lushaka
Lushaka is an oceanic planet located in proximity to Penacony, the Planet of Festivities. According to the lore encapsulated within the Relic's description, the world was once a vibrant land-dwelling civilization, but the sea level rose dramatically, ultimately drowning the entire city. This submerged city is all that remains of the marine world Lushaka.
The Watchmaker's Homeworld and The Edars
The deepest connection of Lushaka to the main story is its identity as the homeworld of Mikhail, the legendary big shot of Penacony and the figure known as "The Watchmaker." Mikhail, a former mechanic of the Astral Express, carried the memory of his drowned planet with him, a tragedy that informs the complex, sometimes dark, nature of the Penacony dreamscape.
The lore also mentions the Edars, a juvenile marine species whose siren-like songs lured the land-dwellers into the ocean to drown, a chilling detail that hints at the planet's final, devastating moments. This dark history of a world consumed by its own rising waters serves as a poignant contrast to the false cheer of Penacony's Dreamscape, a world that itself is constantly threatened by the concept of "sinking" and returning to its original form.
The Hidden Power of The Sunken Seas: Relic Set Mechanics Explained
The Lushaka, the Sunken Seas Planar Ornament set was introduced in Version 2.5 and is a must-farm for players looking to optimize their support and utility characters. Its effect is simple on the surface but contains a powerful, position-based mechanic that is often overlooked.
2-Piece Set Effect Breakdown
The two-piece effect of Lushaka, the Sunken Seas is as follows:
- Energy Regeneration Rate Increase: Increases the wearer's Energy Regeneration Rate by 5%.
- Conditional ATK Buff: If the wearer is not the first character in the team lineup, then it increases the ATK of the first character in the team lineup by 12%.
The 5% Energy Regeneration Rate (ERR) is a solid, baseline boost that helps any support or sub-DPS reach their ultimate faster, a necessary component for many builds. However, the true utility lies in the conditional ATK buff. By placing the wearer in the second, third, or fourth slot, they provide a 12% ATK boost to the character in the first slot—a slot almost universally reserved for the main damage dealer (DPS) in the current meta. This makes Lushaka a fantastic dual-purpose set, boosting the wearer's utility while simultaneously enhancing the team's primary damage source.
5 Best Characters to Use Lushaka, the Sunken Seas Right Now
Due to its unique positional buff, the Lushaka set is most effective on characters who are not the main damage dealer, who greatly benefit from the extra Energy Regeneration, and who can be comfortably placed in slots 2, 3, or 4. Here are the top characters who can maximize the set's potential:
1. Ruan Mei (Harmony)
Ruan Mei is arguably the best candidate for the Lushaka set. She is a premier support who desperately needs high Energy Regeneration to maintain her Ultimate's uptime, which is crucial for increasing the team's Break Efficiency and All-Type Resistance Penetration. By placing her in the second slot, she hits her ERR breakpoints while providing a free 12% ATK buff to your Hypercarry DPS (in the first slot).
2. Gallagher (Abundance)
The Abundance Path character Gallagher is an excellent choice, as his kit is designed to boost his team's DPS units' Break damage. Like Ruan Mei, he benefits significantly from the 5% ERR to ensure his Ultimate is ready to apply the Besotted status effect. Placing him in a non-first slot allows him to contribute to the team's damage output indirectly through the ATK buff, making him a more offensive utility healer.
3. Bronya (Harmony)
Bronya, a powerful Harmony character, thrives on high Energy Regeneration to frequently use her Ultimate, which grants a massive ATK and Crit DMG boost. While she traditionally uses sets like Broken Keel or Fleet of the Ageless, Lushaka offers a competitive alternative, especially in teams where her main DPS partner (in slot 1) scales exceptionally well with a direct ATK percentage increase.
4. Huohuo (Abundance/Harmony Hybrid)
Huohuo’s role is unique: she is an Abundance character who also acts as a powerful battery, regenerating Energy for her entire team with her Ultimate. The base 5% ERR from Lushaka helps her charge her own Ultimate faster, which in turn accelerates the Ultimates of the other three party members. This creates an incredibly fast-cycling team composition, and the passive 12% ATK buff is a welcome bonus.
5. Tingyun (Harmony)
Tingyun is the quintessential Energy battery for any DPS unit. The 5% ERR from Lushaka directly helps her charge her Ultimate more quickly, allowing her to dump Energy into her main DPS more often. Since her primary role is to buff and regenerate Energy, she is an ideal candidate for a set that boosts her own utility while simultaneously providing a direct damage increase to the Hypercarry in the first position.
Farming and Acquisition Guide
To acquire the Lushaka, the Sunken Seas Planar Ornament set, you must challenge the Divergent Universe: Famished Worker. This is the current source for both the Lushaka set and its counterpart, The Wondrous BananAmusement Park. When farming this domain, focus on the following main stats for your support wearers:
- Link Rope: Energy Regeneration Rate is the top priority to ensure the character reaches their Ultimate rotation breakpoint.
- Planar Sphere: The appropriate damage or defensive stat based on the character's scaling (e.g., HP% or DEF% for pure sustain, or Elemental DMG for sub-DPS supports like Ruan Mei).
The Lushaka set is a modern staple for high-tier support units. By understanding the mechanical synergy and the deep lore of Mikhail's sunken homeworld, you can transform a simple Relic set into a strategic cornerstone of your strongest teams.
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