Hysilens has quietly become one of the most devastating DoT specialists in v3.7 – and honestly? She's been flying under the radar. This character can stack up to 4 different elemental DoTs while keeping your team alive, which is pretty wild when you think about it. We're talking F2P builds hitting 90% effectiveness all the way up to whale-tier E6 setups that'll make your damage meters weep with 295% DPS scaling.
Hysilens Overview: The DoT Queen You Didn't See Coming
What Makes Her Tick
Here's the thing about Hysilens – she's a 5-star Physical Nihility unit that completely flips the script on how DoT damage works. Instead of the usual apply one debuff and pray approach, she throws Wind Shear, Bleed, Burn, AND Shock at enemies like she's running some kind of elemental torture chamber.
Her Talent? It triggers on literally every ally attack with 100% reliability. Each hit applies a random DoT that stacks up to 5 times. At Level 80, you're looking at 1203 HP, 601 ATK, 485 DEF, and 102 SPD – nothing groundbreaking there. But those Minor Traces add +18% ATK, +14 SPD, and +10% Effect Hit Rate, which starts painting the picture.
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The DoT Math That Actually Matters
Forget everything you know about CRIT builds. Hysilens scales purely on ATK and DMG% – which honestly makes gearing so much simpler once you wrap your head around it.
Her Talent deals 25% ATK for Wind Shear, Burn, and Shock (lasting 2 turns each), while Bleed hits for 20% of enemy Max HP. That Bleed damage caps at 25% ATK though, and it's Physical element for 2 turns. When you max out all stacks? You're looking at 100% ATK damage per turn baseline, jumping to 200% when Wind Shear hits 5 stacks.
The Ultimate deploys this 3-turn Zone that's basically a death field – 15% ATK reduction and 25% DEF reduction for enemies, plus 200% ATK Physical AoE damage upfront. But here's where it gets spicy: every DoT tick inside that Zone triggers an additional 80% ATK Physical DoT, up to 8 times per enemy turn. We're talking potential 640% ATK damage scaling here.
Oh, and A4 Trace? It detonates all existing DoTs at 150% original damage when you cast Ultimate. Because apparently regular DoT damage wasn't enough.
Where She Stands in the Meta
V3.7 has been kind to Hysilens. T0 in Memory of Chaos and Pure Fiction, T0.5 in Apocalyptic Shadow – those aren't accident rankings. Usage stats show 70.39% adoption at E0 with 5.19 cycle average clears, improving dramatically to 2.72 cycles at E1 (though only 24.56% of players have her there).
But here's the catch – and it's a big one. 98.4% of successful Hysilens builds run Kafka. Without Kafka's DoT detonation, her performance drops 2-3 tiers. She's not a solo act.
Best Relic Sets: What Actually Works
The Clear Winner
Prisoner in Deep Confinement 4-piece dominates with 99.28% usage among top performers, and there's good reason for that. The 2-piece gives +12% ATK (standard stuff), but the 4-piece ignores 6% enemy DEF per DoT type up to 3 stacks. That's 18% total DEF ignore when you're running multiple DoT types – which Hysilens does by default.
This synergy isn't accidental. Her Talent applies all four DoT types through ally attacks, so you're hitting that 18% DEF ignore consistently in endgame content where enemies have serious defensive stats.
Farm these in Caverns of Corrosion. Priority goes to Body pieces with Effect Hit Rate main stats and Feet pieces with either SPD or ATK% depending on where your stats land.
When You're Still Building
Champion of Streetwise Boxing 4-piece works as your stepping stone, hitting 93.76% relative performance compared to Prisoner. The 2-piece grants +10% Physical DMG, while 4-piece stacks +5% ATK per attack up to 5 times (25% total ATK boost).
For flexible progression builds, Champion 2-piece + Musketeer 2-piece creates a solid +22% ATK foundation while you farm for better pieces.
Performance breakdown: Prisoner 4-piece is your 100% baseline, Champion hits 93.76% relative output. But here's what matters more – hit that 120% Effect Hit Rate threshold before you worry about set bonuses. Failed DoT applications will tank your performance harder than suboptimal set choices.
Planar Ornaments: The Supporting Cast
The Obvious Choice
Revelry by the Sea 2-piece shows up in 96.17% of builds, and the math checks out. +12% ATK baseline with scaling DoT bonuses – at 2400 ATK you get +12% DoT damage, jumping to +24% DoT damage at 3600 ATK.
That 3600 ATK breakpoint aligns perfectly with endgame stat distributions. Properly built Hysilens averages 3370 ATK in successful clears, so you're hitting those thresholds naturally.
Farm these through Simulated Universe runs, targeting Body and Feet pieces for optimal main stat combinations.
The Speed Alternative
Firmament Frontline: Glamoth 2-piece offers SPD-scaling bonuses with +12% ATK and conditional damage. At 135 SPD you get +12% damage, scaling to +18% at 160 SPD.
SPD tuning gets tricky here though. Hysilens needs 135+ SPD to outpace Kafka (who should sit at 134 SPD) for optimal rotation timing. It's doable, but requires careful stat management.
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Stat Targets That Matter
Main stats: Physical DMG or ATK% on Planar Sphere, Energy Regen Rate or ATK% on Link Rope. Energy management becomes crucial since Ultimate costs 110 energy – you need consistent generation.
Substat priority: Effect Hit Rate until 120% → SPD to 135+ → ATK% and flat ATK. That 120% EHR breakpoint activates A6 Trace's maximum 90% damage bonus. It's not negotiable.
Main Stats & Substats: The Foundation
Body Piece Strategy
Effect Hit Rate main stat on Body pieces gives you the most efficient path to 120% EHR threshold. This ensures consistent DoT application against endgame enemy resistances while maxing out A6 Trace damage scaling.
The 120% EHR target represents a hard breakpoint where A6 Trace reaches maximum 90% damage bonus. Each 10% EHR above 60% grants 15% damage increase – this isn't optional optimization, it's mandatory.
Quality EHR Body pieces need +15 enhancement with strong SPD and ATK% substats to be worth using.
Feet Piece Considerations
SPD main stat on Feet enables proper turn order management, especially acting before Kafka in rotations. Target 135+ SPD for consistent turn priority while maintaining energy generation through frequent actions.
ATK% Feet becomes viable when SPD requirements are met through substats and Light Cone bonuses, but turn order matters more than raw stats here.
The Priority Ladder
Effect Hit Rate > Speed > ATK% > ATK for optimization efficiency. Endgame targets: ATK ≥3000-3500, EHR 120%, SPD ≥135, HP 3000+, DEF 900+ for survivability.
Advanced optimization focuses on breakpoint efficiency – reaching specific thresholds provides more value than incremental improvements across the board.
Light Cone Analysis: Investment vs. Performance
The Signature Question
Why Does the Ocean Sing signature achieves 125.77% relative DPS with 43.43% usage rate. It provides +40-60% EHR, 80% chance to inflict Enthrallment (3 turns, +5-10% DoT per stack up to 6), and +10-20% ally SPD when attacking Enthrallment enemies.
Here's my take: the signature's value lies in convenience rather than raw performance. F2P alternatives hit 90% effectiveness, so you're paying premium for easier stat management. Average cycle performance shows 5.54 cycles with signature vs 6.61 cycles with Eyes of the Prey – meaningful but not game-changing.
The F2P Champion
Eyes of the Prey (4-star, S5) represents your premier F2P option with 100% baseline DPS and 36.58% usage rate. +40% EHR and +48% DoT damage directly addresses Hysilens' core stat requirements.
S5 refinement becomes essential for competitive performance. Plan on Herta Store purchases over time – it's worth the investment.
Good Night and Sleep Well (4-star) offers +24% DMG per debuff (maximum 3 stacks) with 97.28% relative performance, though S5 refinement requirement and 1.62% usage rate suggest it's more theoretical than practical.
Situational Picks
Reforged Remembrance (5-star) achieves 120.63% relative DPS for players owning Black Swan, providing +40-60% EHR and +5% ATK with 7.2% DEF ignore per DoT stack up to 4. Before the Tutorial Mission provides energy generation on DEF-reduced enemies – useful in specific team compositions but not universally applicable.
Eidolon Investment: Where Your Pulls Matter Most
The Game-Changer
E1 You Ask Why Hearts Cry represents the highest value investment in the game right now. 167% relative DPS boost with transformative gameplay changes – this isn't just number inflation.
E1 enables allies to deal 116% original DoT damage with Hysilens on-field while causing Talent to inflict additional identical DoT states with 100% chance. You're essentially doubling DoT application while providing team-wide damage amplification. It's absurd.
E2 Tell Me Why Waves Roar High extends A6 damage bonus (up to 90%) to all allies within Zone effects, creating 5-15% team damage increases. Nice, but not essential.
Investment Logic
Priority: E1 > E2 > Signature > E6 > E4 for optimal resource allocation. E1 provides the largest single performance jump in the game. E2 offers team utility that's valuable but not transformative.
Budget recommendations: 1-pull E0S0 for minimal investment, 2-pull E1S0 for optimal value, 3-pull E2S0 for team players. E6 becomes viable only for whale-tier investment with 295% DPS scaling through 12 triggers and +20% multiplier.
Skip if you lack Kafka or DoT team focus – Hysilens underperforms without proper synergy partners.
Trace Leveling: Priority Management
What to Max First
Ultimate gets maximum priority (★★★★★) for damage scaling and Zone deployment. 200% ATK base damage scales with investment while Zone effects remain crucial for team performance.
Skill ranks second (★★★★) for energy generation and Vulnerability application – that 20% damage taken debuff for all enemies lasting 3 turns adds up quickly.
Talent achieves third priority (★★★★) for DoT application improvement, though scaling remains modest compared to Ultimate and Skill. Basic ATK receives lowest priority (★★★) since optimal rotations barely use it.
Advanced Trace Strategy
Major Traces require immediate attention. A2 provides battle-start Zone deployment and SP recovery – quality of life that becomes essential in challenging content. A6 grants crucial EHR-to-damage conversion with +15% damage per 10% EHR above 60% threshold. Maximum 90% damage bonus at 120% EHR represents her largest single damage multiplier.
A4 enables Ultimate DoT detonation at 150% original damage, creating burst potential that synergizes with Kafka's detonation timing.
Total investment: 3,000,000 Credits, 12 Daythunder Anamnesis (weekly boss), requiring 12 weeks minimum for completion. Plan accordingly.
Team Building: The Synergy Game
The Core Formula
Premium DoT composition: Hysilens (DPS), Kafka (DoT trigger), Black Swan (Arcana/DEF shred), Huohuo (ATK/energy sustain). This combination achieves 6.17-6.48 average cycles in Memory of Chaos and Pure Fiction through optimized DoT stacking and detonation timing.
Kafka provides essential DoT detonation every 2 turns while applying Shock. Black Swan contributes Arcana stacking and DEF reduction. The Hysilens-Kafka synergy remains non-negotiable – 98.4% of successful builds prove this.
Alternative sustain: Luocha for SP efficiency, Aventurine for shields and follow-up attacks, or Hyacine for advanced energy management.
Hybrid Approaches
Acheron synergy teams utilize Hysilens as sub-DPS with Acheron (main DPS), Kafka/Jiaoqiu (sub-DPS), and Aventurine (sustain). Hysilens' DoTs count as debuffs for Acheron's Ultimate stacking, accelerating Slash Dream accumulation.
E2 Acheron variants can incorporate Tribbie and Hyacine for frequent attacks triggering both DoT application and Slash Dream stacks. It's elegant when it works.
Sustainless compositions featuring Hysilens, Kafka, Black Swan, and Ruan Mei prioritize overwhelming damage before enemy actions. High risk, high reward.
Support Synergies
Robin provides ATK buffs and turn advancement, enhancing both DoT damage and rotation speed. Ruan Mei offers RES PEN, SPD buffs, and Break delay, extending DoT duration while improving damage penetration.
Support alternatives include Cipher/Tribbie for Vulnerability and RES PEN, Pela for DEF shred, or Silver Wolf for targeted DEF reduction. Each brings different utility depending on content requirements.
Combat Execution: Making It Work
Rotation Fundamentals
Battle initiation uses Technique for 2 random DoT applications, followed by Hysilens Skill for Vulnerability debuff and energy generation. Ultimate deployment creates Zone effects while detonating existing DoTs at 150% damage.
Standard rotation: Hysilens Skill → Ultimate → Kafka Skill → Black Swan Skill → Huohuo Skill. SPD tuning ensures Hysilens acts before Kafka (135+ SPD vs 134 SPD) for proper DoT application before detonation.
Manual play optimization outperforms auto-battle due to precise timing requirements. Auto-battle doesn't understand DoT synergy.
Energy Economics
110 energy Ultimate cost requires consistent generation through 30 energy Skill usage and ally attack triggers. Energy Regen Rate Link Rope provides 19.4% faster generation, while Huohuo supplies direct energy restoration.
A2 Trace SP recovery (1 SP per Zone creation) improves resource efficiency, enabling more frequent Skill usage. Alternative energy sources include Before the Tutorial Mission or Solitary Healing, though these provide limited value in boss encounters.
Advanced Techniques
Boss phase transitions require DoT reapplication through Technique usage or coordinated ally attacks. Multi-wave content benefits from Zone timing to maximize coverage across enemy spawns.
SPD manipulation through buffs/debuffs enables turn order control for advanced players. It's micro-management, but it matters in challenging content.
Endgame Performance: Where She Shines
Memory of Chaos Dominance
T0 ranking reflects exceptional single-target and blast damage capabilities. Average performance shows 5.19 cycles at E0 with 70.39% usage rate, improving to 2.72 cycles at E1 with 24.56% adoption.
Successful builds average 3370 ATK, 144.77 SPD, and 123.44% EHR. DoT scaling excels against high HP enemies where sustained damage outperforms burst windows – exactly what Memory of Chaos throws at you.
Pure Fiction Excellence
T0 Pure Fiction ranking emphasizes AoE DoT application across multiple enemy waves. Multi-target damage calculations show E0 achieving 3,587,730 damage against 3 targets, scaling to 6,185,394 at E1 (172% increase).
Five-target scenarios reach 4,865,182 at E0 and 8,645,559 at E1 (178% scaling). Wave management prioritizes DoT application early for maximum tick accumulation – patience pays off here.
Simulated Universe Considerations
T0.5 Apocalyptic Shadow ranking reflects strong single-target performance with some limitations against Break-focused encounters. Blessing synergies enhance DoT effectiveness through damage amplification and turn manipulation effects.
Path selection favors Nihility and Abundance for enhanced debuff application and sustain capabilities. Hunt and Destruction paths offer less synergy with her kit.
FAQ
What are the essential stats for Hysilens DoT build? 120% Effect Hit Rate for maximum A6 Trace damage bonus, 135+ SPD to outpace Kafka, and 3600+ ATK for Revelry ornament bonus. These aren't suggestions – they're requirements.
Which Light Cone should I use for F2P Hysilens build? Eyes of the Prey S5 offers best F2P performance with +40% EHR and +48% DoT damage, achieving 90% effectiveness compared to signature options. The investment is worth it.
Is E1 Hysilens worth pulling over signature Light Cone? Absolutely. E1 provides 167% DPS scaling through doubled DoT application and 116% team damage multiplier – more value than signature by a significant margin.
What team composition works best with Hysilens? Hysilens + Kafka + Black Swan + Huohuo represents optimal composition, achieving 6.17-6.48 average cycles. Kafka isn't optional here.
How do I manage Hysilens' energy requirements? Energy Regen Rate Link Rope, prioritize Skill usage for 30 energy generation, and coordinate with Huohuo for direct energy restoration. Energy management makes or breaks her performance.
What relic sets should I farm for Hysilens? Prisoner in Deep Confinement 4-piece provides optimal performance with 18% DEF ignore when applying multiple DoT types. Pair with Revelry by the Sea ornaments for ATK scaling. Start farming these immediately.