Ocean Sing brings 40% EHR and 30% DoT vulnerability with team speed buffs, while Eyes of the Prey (S5) delivers 40% EHR and 48% personal DoT damage for way less investment. We're breaking down damage numbers, costs, and whether you should pull before that September 2025 banner disappears.
Look, I've been covering gacha economics for years, and this decision hits different depending on where you are in the game. Let's dig into the numbers.
What Makes Ocean Sing Special (And Expensive)
The Raw Stats
Ocean Sing packs 635 ATK at Level 80—that's tied with Acheron's signature for the highest Nihility ATK stat in the game. Since DoT effects scale directly with ATK multipliers, this isn't just a vanity number. It matters for your damage calculations.
The defensive stats? 952 HP and 463 DEF. Clearly, this thing's built for offense.
Here's where it gets interesting though. That 40% EHR at S1 enables reliable debuff application, sure—but the real magic happens when debuff infliction triggers an 80% chance for Enthrallment lasting 3 turns. Each debuff stacks 5% DoT vulnerability up to 6 stacks (30% maximum).
But wait, there's more. Allies attacking Enthrallment targets gain 10% SPD for 3 turns. That speed boost? It's accelerating your entire turn cycle.
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Superimposition Reality Check
S5 reaches 60% EHR, 10% DoT per stack (50% maximum), and 20% SPD boost. That's enough to hit Hysilens' 120% EHR threshold for her A6 trace's 90% damage conversion while providing enhanced team rotation efficiency.
Here's my take: S1 delivers about 80% of maximum benefits at significantly lower cost. Unless you're a whale, stop at S1.
Budget Alternatives That Actually Work
Premium 4-Star Territory
Eyes of the Prey (S5): 40% EHR + 48% DoT damage.
That personal damage boost actually exceeds Ocean Sing's 30% vulnerability for individual performance—but you lose all team benefits. The catch? You need standard banner accumulation for S5, which can take months.
Good Night and Sleep Well: 12% damage per enemy debuff, scaling to 36% with three debuffed enemies. This one's sneaky good in multi-target scenarios and applies to all damage types, not just DoT.
F2P Solutions That Don't Suck
Solitary Healing: 20% Break Effect, 24% DoT damage for 2 turns post-Ultimate, plus 4 Energy when DoT defeats enemies. That energy regeneration supports Ultimate frequency for energy-hungry characters like Hysilens.
Reforged Remembrance (Herta Store): 40% EHR + Prophet stacks providing 5% ATK and 7.2% DEF ignore per DoT type
, capping at 4 stacks. Hysilens can achieve 20% ATK and 28.8% DEF ignore with multiple DoT types. Not bad for a free option.
The Numbers Game
DPS Reality
Ocean Sing's team-wide benefits create 20-30% higher team DPS through vulnerability amplification affecting all DoT sources, plus that SPD boost increasing turn frequency. Eyes of the Prey's 48% personal boost provides immediate improvement but lacks synergy multiplication.
That 10% SPD boost enables critical breakpoints too. Hysilens normally needs 135 base SPD to act before Kafka, but Ocean Sing reduces this to 129 SPD. That's flexible stat allocation toward ATK and EHR instead.
Endgame Performance Check
Memory of Chaos: Ocean Sing elevates Hysilens to T0 performance with vulnerability stacking enabling consistent 3-star clears against those HP-inflated bosses. Budget options require longer rotations but still achieve content completion.
Pure Fiction: Team SPD benefits frequent AoE debuff cycles, though single-target Enthrallment limits vulnerability compared to personal damage boosts affecting all targets.
Investment Reality Check
Cost Breakdown (Ouch)
Ocean Sing requires 80 pulls (12,800 Stellar Jade) for guaranteed acquisition. S5 demands up to 400 additional pulls. Eyes of the Prey typically needs 20-40 pulls for S5 through standard banners.
Opportunity cost consideration—and this is important: those 80 pulls could secure character Eidolons or future acquisitions. Hysilens E1 provides 16% team DoT damage and double Talent application. That's superior value compared to her signature light cone.
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Value Assessment
Early-game players benefit more from character roster expansion. Period. Established accounts with complete teams gain proportionally more from optimization investments. Ocean Sing's team utility provides future-proofing against power creep through vulnerability and SPD scaling.
Who Should Actually Use This Thing?
Optimal Users
Hysilens: Signature design maximizes synergy. 40% EHR supports that 120% threshold for A6 trace
, Enthrallment amplifies multi-DoT patterns.
Jiaoqiu: Reliable EHR for debuff consistency, Enthrallment enhances support role, SPD accelerates AoE debuff application.
Black Swan: Improved Arcana stack reliability, team SPD supports DoT enabler role.
Team Compositions
Premium DoT teams (Hysilens/Kafka/Black Swan/Huohuo) maximize Ocean Sing through coordinated debuff application and precise turn order management.
F2P alternatives using Sampo/Asta/Gallagher benefit from EHR and amplification but gain less SPD value due to Asta's existing buffs.
Rerun Strategy (Plan Ahead)
Timeline Predictions
HoYoverse implements 6-8 month intervals between releases and first reruns. Ocean Sing's August 2025 release suggests early 2026 rerun potential, likely coinciding with Hysilens' character rerun.
Current banner ends September 2, 2025. Versions 3.6-3.7 focus on new releases rather than reruns. Anniversary events in early 2026 may feature enhanced rerun rates.
Resource Planning
F2P players need 2-3 months Stellar Jade accumulation for 80-160 pull allocation. Alternative strategy: save resources for future releases while using budget options for immediate needs.
F2P Optimization Framework
Priority Framework (Follow This Order)
Core characters
Essential Eidolons
Signature light cones
Superimposition investment
Eyes of the Prey S5 provides 80-90% of Ocean Sing's personal benefits through standard banner accumulation. Solitary Healing offers immediate 5-star stats through event acquisition without pull requirements.
Progression Milestones
Early-game: Achieve 120% EHR through relic optimization and budget light cones before premium investments.
Mid-game: Ocean Sing's SPD benefits provide meaningful improvements but budget alternatives remain viable.
Endgame: Appropriate timing for signature investment when shifting from capability building to performance maximization.
Meta Analysis
Current Relevance
DoT teams occupy strong positions in Memory of Chaos and Apocalyptic Shadow against HP-inflated enemies. Hysilens' introduction strengthened DoT viability, creating demand for supporting light cone options.
Future Considerations
Ocean Sing's team-focused design provides sustainability against character power creep through universal vulnerability amplification. SPD manipulation offers unique utility unavailable through other options, maintaining niche value across meta shifts.
My Recommendations
Player Type Guidelines
Dedicated DoT players: Prioritize Ocean Sing before September 2025 deadline for significant team enhancement and future-proofing.
Casual players: Utilize Eyes of the Prey S5 or Solitary Healing providing 80-90% benefits at lower cost.
F2P players: Generally avoid unless character rosters and essential Eidolons are complete—opportunity cost typically outweighs optimization benefits.
Decision Framework
Evaluate your DoT team investment level, available resources, and account progression stage. High investment in Hysilens/Kafka/Black Swan justifies signature acquisition. Casual DoT usage favors budget alternatives providing sufficient performance for content completion.
FAQ
Is Ocean Sing worth pulling with only Hysilens? Ocean Sing provides value through EHR and damage amplification, but Eyes of the Prey S5 offers 80% benefits at much lower cost. Consider your long-term DoT team plans.
How much damage difference vs F2P options? Ocean Sing provides 20-30% higher team DPS in optimal compositions through vulnerability stacking and SPD buffs. Eyes of the Prey offers 48% personal DoT damage without team benefits.
Ocean Sing or Hysilens E1 priority? Hysilens E1 provides superior value with 16% team DoT damage and enhanced Talent effects. Prioritize E1 for maximum account progression efficiency.
When's the next rerun expected? Based on typical 6-8 month intervals, potentially early 2026 coinciding with Hysilens rerun. No official confirmation exists.
Can budget options clear endgame content? Yes, Eyes of the Prey S5 and Solitary Healing enable Memory of Chaos 3-star clears and endgame completion with longer clear times.
Minimum EHR without Ocean Sing? Target 120% EHR for reliable debuff application against enemy resistance through relic optimization and budget light cones like Eyes of the Prey.