5-Star
Physical
The Nihility
S+ Tier
Physical
The NihilityOne of the strongest DoT units in Honkai: Star Rail. Hysilens floods the field with all four DoT types through her Talent and Zone mechanics, empowering every debuff her allies land while her Fiddle of Pearls trace rewards high Effect Hit Rate with up to 90% extra DMG, making her the premier DoT enabler and damage dealer in one.
Hysilens
Chrysos Heirs / Winedark SwansongBest Light Cone
Why Does the Ocean Sing
Best Relic Set
Prisoner 4pc
Planar Set
Revelry by the Sea
Team Rule
120% Eff. Hit Rate
Best Partner
Skills
Basic
Aeolian Mode: Echoes in Still Waters
Deals Physical DMG equal to 50% of Hysilens's ATK to one designated enemy. Low priority. Her other abilities generate far more damage and utility. Use only when Skill Points are scarce.
50%
of ATK
Skill
Overtone Hum: Chorus After Dark Tides
Has a 100% base chance to increase the DMG taken by all enemies by 10% for 3 turns. At the same time, deals Physical DMG equal to 70% of Hysilens's ATK to all enemies. A reliable AoE debuff on every cast, feeding DoT chains across the whole field.
70%
AoE DMG
Ultimate
Maelstrom Rhapsody
Deploys a Zone that reduces all enemy ATK by 15% and DEF by 15%, and deals Physical DMG equal to 120% of Hysilens's ATK to all enemies. Inside the Zone, for every 1 DoT instance an enemy takes, Hysilens deals additional Physical DoT equal to 32% of her ATK, triggering up to 8 times per turn or after an ally attack. Zone lasts 3 turns.
120%
AoE + Zone
Talent
Sirenic Serenade
When any ally attacks, there is a 100% base chance for Hysilens to inflict the enemy with one of: Wind Shear, Bleed, Burn, or Shock, prioritizing a state not already present. Wind Shear/Burn/Shock deal 10% ATK DoT per turn; Bleed deals 20% of the target's Max HP (up to 10% ATK) per turn. This passive fires on every allied attack, rapidly stacking all four DoT types.
4
DoT types
Technique
At Ocean's Abode
Creates a Special Dimension for 20 seconds. Enemies inside enter "Soulstruck" and will not attack, instead following the dimension. Entering combat with Soulstruck enemies gives a 100% base chance to inflict each enemy with 2 random DoT states from Hysilens's Talent, providing a powerful combat opener with pre-applied debuffs.
2
DoTs on entry
Build Targets
Relic Main Stats
Head
HP (fixed)
Hands
ATK (fixed)
Body
Effect Hit Rate
Feet
ATK%
or SPD
Planar Sphere
ATK%
or Physical DMG
Link Rope
ATK%
Stat Targets
Substat Priority
01
Effect Hit Rate
reach 120%
02
ATK%
scales DoTs
03
Speed
more turns
04
Effect RES
prevents CC
Skill Upgrade Order
Ult
1st
Talent
2nd
Skill
3rd
Basic
Skip
Ultimate first for increased Zone DoT multipliers and stronger ATK/DEF reductions. Talent second since it is the engine driving all four DoT types. Skill third for the DMG-taken debuff. Basic ATK rarely used in combat.
Best Light Cones
#1
Why Does the Ocean Sing
Her signature. Provides Effect Hit Rate and increases DMG received from DoTs by enemies. Also grants a SPD buff to allies after they attack an enemy, accelerating the whole team's turn count and cycling DoT triggers faster.
#2
Reforged Remembrance
Excellent alternative. Provides Effect Hit Rate and stacks Prophet charges that increase ATK and allow DEF ignore on enemies. Scales well with Hysilens's high hit count from her Talent.
#3
Those Many Springs
Provides the highest raw Effect Hit Rate of any light cone, making it easier to reach the 120% threshold for Fiddle of Pearls. Also increases DMG taken by debuffed enemies.
#4
Eyes of the Prey
Best 4-star option. Increases Effect Hit Rate and DoT DMG. Easy to obtain and superimpose; a reliable choice for players without limited 5-star cones.
#5
Good Night and Sleep Well
Scales DMG dealt for every DoT or debuff on the enemy. Works with Hysilens's multi-DoT playstyle but provides no Effect Hit Rate, so you must make up the stat elsewhere in relics.
#6
Patience is All You Need
Provides speed stacking and Erode application. A niche pick for Hysilens, useful when Effect Hit Rate is already capped through substats and you want speed cycling.
Best Relics
Cavern Sets
1
Prisoner in Deep Confinement
Best-in-slot cavern set for DoT units. The 4-piece bonus reduces enemy DEF proportional to the number of DoT types applied, synergizing perfectly with Hysilens's ability to stack all four simultaneously. No other set comes close for her primary damage role.
2
Champion of Streetwise Boxing (4pc)
Solid early-game alternative. Increases Physical DMG and ATK, which scales Hysilens's direct damage and her ATK-based DoTs. A good set to use while farming Prisoner pieces.
3
+
Prisoner (2pc) + Champion (2pc)
Mixed 2-piece option if neither set has ideal substats. Provides ATK% and Physical DMG bonuses. Lower ceiling than the full 4-piece Prisoner setup but acceptable for early progression.
Planar Ornament Sets
1
Revelry by the Sea
Best planar set for Hysilens. Grants a large DoT DMG bonus when ATK reaches 3600 during combat, a threshold Hysilens can comfortably hit with proper buffs. The DoT amplification stacks directly with Prisoner's DEF reduction for maximum output.
2
Firmament Frontline Glamoth
Competitive alternative. Increases DMG when SPD is 135 or higher, which Hysilens should reach or approach in most builds. Strong if you cannot hit the 3600 ATK threshold for Revelry reliably.
3
Pan-Galactic Commercial Enterprise
Converts Effect Hit Rate into ATK bonus. Useful if Hysilens already has very high EHR and wants to push ATK higher without sacrificing other substats.
Best Teams for Hysilens
Hysilens needs at least 120% Effect Hit Rate to fully unlock the Fiddle of Pearls DMG bonus. Pair her with units that trigger DoTs and provide ATK or SPD buffs to maximize her Zone's Physical DoT cascades.
01 · Premium DoT
Best-in-slot composition
02 · Triple DoT
Maximum DoT stack density
Black Swan's Arcana mechanic stacks additional DoT instances and her DEF reduction amplifies all DoT ticks. Three simultaneous DoT dealers saturate enemies with debuffs, letting Hysilens's Zone fire its Physical DoT trigger at maximum frequency.
03 · Sunday Flex
Turn advance variant
04 · F2P · Budget
Accessible characters only
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Eidolons
E
1
You Ask Why Hearts Cry
While Hysilens is on the field, ally targets deal DoT equal to 116% of their original value. When Hysilens inflicts Wind Shear/Bleed/Burn/Shock on enemies via her Talent, there is a 100% base chance to additionally inflict 1 extra instance of the same state, which can coexist with the pre-existing one. Effectively doubles her Talent's DoT application rate and boosts the whole team's DoT output.
High Pull Value
E
2
Tell Me Why Waves Roar High
While the Zone is active, the DMG Boost effect from Trace "The Fiddle of Pearls" applies to all allies, not just Hysilens. Hysilens's high Effect Hit Rate stat becomes a team-wide DMG multiplier for the entire duration of her Zone, making every other unit hit harder simultaneously.
Game Changer
E
3
Why Do Lights Bid Goodbye
Ultimate level +2 (max 15) and Basic ATK level +1 (max 10). The Ultimate level upgrade increases the Physical DoT triggered per DoT instance in the Zone and strengthens the ATK/DEF reductions applied on enemies.
Solid Upgrade
E
4
Lo, How Time Flows By
While the Zone is active, reduces All-Type RES of all enemies by 20%. This passive amplification applies to every damage type from every ally for the full Zone duration, adding meaningful team-wide penetration in any composition.
Good Passive
E
5
In Ablution, I Hum and Sigh
Skill level +2 (max 15) and Talent level +2 (max 15). Increases the DMG-taken debuff from her Skill and strengthens the ATK scaling on all four DoT types her Talent applies. Incremental but consistent improvement across her entire kit.
Incremental
E
6
When to Return From Where You Lie
While the Zone is active, at the start of each turn or after one ally attack, the maximum trigger count for Hysilens's Physical DoT rises from 8 to 12, and the DMG multiplier of each trigger increases by 20%. Combined with E4's RES reduction, this E6 dramatically increases Physical DoT output per cycle and pushes total Zone damage to its ceiling.
Massive Upgrade
Major Traces
The Gladius of Conquest
Ascension 2
At the start of combat, Hysilens automatically deploys a Zone equivalent to her Ultimate's Zone, lasting for 3 turns. Whenever Hysilens deploys a Zone, she recovers 1 Skill Point. This means combat begins with the Zone already active and Hysilens immediately gains SP, enabling a fast first rotation with no energy ramp-up required.
The Bubble of Banquets
Ascension 4
When Hysilens uses her Ultimate, if the enemy is currently afflicted with DoT(s), all active DoTs immediately deal 150% of their original DMG. This trace turns every Ultimate cast into an instant DoT burst, punishing enemies that have been stacked with multiple DoT types. It heavily rewards stacking DoTs before firing the Ultimate.
The Fiddle of Pearls
Ascension 6
For every 10% of Hysilens's Effect Hit Rate that exceeds 60%, her DMG dealt increases by 15%, up to a maximum of +90%. Reaching 120% EHR fully activates this trace (60% excess = 6 stacks of 15%). This is why Effect Hit Rate is the single most impactful stat for Hysilens and why her body piece must roll EHR.
+14%
ATK
+10%
Effect Hit Rate
+14 SPD
Speed
Upgrade Materials
Fear-Stomped Flesh
Character Ascension
Fiery Spirit
Trace Material
Invasive Clot
Boss Drop
Daythunder Anamnesis
Weekly Boss Drop
Frequently Asked Questions
No. Eyes of the Prey or Good Night and Sleep Well are serviceable alternatives. Her signature (Why Does the Ocean Sing) is the best option for maximizing DoT output and giving the team a SPD boost, but Hysilens clears all endgame content at E0 with strong 4-star light cones. Consider pulling E1 over the light cone for a better damage increase per stellar jade spent.
Her Ascension 6 trace, The Fiddle of Pearls, grants 15% DMG for every 10% of Effect Hit Rate above 60%, up to a cap of 90% bonus DMG. Reaching 120% EHR (60% above the threshold) fully activates this bonus. Since 90% DMG is a massive multiplier, Effect Hit Rate becomes her most impactful stat, more valuable than raw ATK% in most builds.
Kafka is Hysilens's strongest partner because Kafka's kit directly triggers all DoTs that Hysilens applies, roughly doubling the DoT damage per cycle. Hysilens still performs without Kafka (DoTs still tick naturally at the start of each enemy turn), but her ceiling is meaningfully lower. If you own Kafka, building a team around them both is strongly recommended.
Hysilens's Zone reduces enemy ATK and DEF by 15% each, and triggers additional Physical DoT up to 8 times (12 at E6) per turn or per ally attack. The Zone lasts 3 turns and its duration decreases by 1 at the start of each of Hysilens's turns. The Gladius of Conquest trace deploys a free Zone at combat start, so the Zone is almost always active. Re-cast the Ultimate before the Zone expires to maintain continuous uptime.
135+ SPD is the recommended general target, giving Hysilens more actions per cycle and unlocking the Firmament Frontline Glamoth planar ornament bonus. If you run her signature light cone (Why Does the Ocean Sing), 129 SPD is acceptable since the cone provides additional SPD. Hysilens's SPD should also be at least 1 higher than Kafka's in teams where both are present, so Hysilens acts first and the Zone is active when Kafka triggers DoTs.
E1 is the highest-priority eidolon. It boosts all ally DoT to 116% and doubles Hysilens's own Talent application rate, providing one of the strongest E1 bonuses for any DoT unit. E2 extends The Fiddle of Pearls DMG bonus to all allies during the Zone, transforming her personal stat into a team-wide multiplier. E6 increases the Zone's maximum Physical DoT triggers from 8 to 12 and adds a 20% DMG multiplier, representing a large damage ceiling increase but at high stellar jade cost.
