The Novaflare event in Honkai: Star Rail version 4.0 introduces enhanced character trials, allowing players to test buffed versions of select units while earning rewards. This update focuses on revitalizing two limited 5-star characters: Sparkle (Harmony: Quantum) and Black Swan (Nihility: Wind). These enhancements aim to bring them back into the meta, addressing power creep and improving their viability in endgame content like Memory of Chaos and Pure Fiction. Below, we analyze the changes, their impacts on gameplay, and potential team synergies.
Sparkle's Enhancements: Elevating Support for High-SP Teams
Sparkle has always been a strong Harmony support, specializing in crit damage boosts, action advances, and skill point (SP) regeneration for SP-hungry DPS characters. The 4.0 buffs make her even more versatile, emphasizing sustained buffs and better resource management.

| Ability | Pre-Buff | Post-Buff | Analysis |
|---|---|---|---|
| Skill (Dreamdiver) | Increases an ally's CRIT DMG by 24% of Sparkle's CRIT DMG + 45% for 1 turn; advances ally action by 50%. | Duration extended to 2 turns. | This doubles the buff uptime, allowing for more consistent damage output without constant reapplication. It's a huge win for rotations in prolonged fights. |
| Ultimate (The Hero with a Thousand Faces) | Recovers 4 SP for the team; grants Cipher (DMG boost) for 2 turns. | Recovers 6 SP; overflow SP grants Mask stacks (enhances effects); Cipher DMG boost now +5% per stack (from 10%), lasts 3 turns. | Better SP economy supports teams with heavy consumers like Qingque or Imbibitor Lunae. The overflow mechanic rewards efficient play, potentially stacking more damage amps. |
| Talent (Red Herring) | Increases ally DMG by 6% per stack (max 3). | Changes to increase enemy DMG taken by 3% per stack (max 4). | Vulnerability debuff scales better with team-wide damage and stacks higher, making Sparkle stronger in multi-DPS setups. |
| Technique (Unreliable Narrator) | Starts battle with 3 Mask stacks. | Adds 20 Energy regeneration for Sparkle. | Improves her energy economy, enabling faster Ultimate cycling in the opening turns. |
| Bonus Ability (Nocturne) | +15% ATK to all allies; additional ATK to Quantum allies. | +45% ATK to all; changes to +10% All-Type RES PEN. | Shifts from type-specific to universal utility, broadening her team options beyond Quantum-focused comps. |
| Eidolon 1 (Suspension of Disbelief) | Cipher triggers SPD boost for 1 turn. | Extends Cipher duration by 1 turn (SPD boost now 2 turns). | Enhances mobility for E1 owners, synergizing with speed-tuned teams. |
Overall, these buffs position Sparkle as a top-tier support for crit-based hypercarries. She now excels in teams with high SP demands, potentially outperforming Bronya in certain scenarios due to superior SP generation. However, her reliance on crit stats remains, so relic farming for CRIT DMG and SPD is crucial. In the meta, expect her to shine alongside characters like Dr. Ratio or upcoming Elation DPS.
Black Swan's Enhancements: Boosting DoT Dominance
Black Swan, a Nihility DoT specialist, relies on stacking Arcana to inflict massive Wind damage over time while debuffing enemies. The 4.0 updates refine her kit for easier stacking, higher damage ceilings, and team-wide benefits, making her a staple in DoT compositions.

| Ability | Pre-Buff | Post-Buff | Analysis |
|---|---|---|---|
| Skill (Decadence, False Twilight) | Inflicts 1 Arcana stack on target and adjacent foes (100% chance). | Removes the base Arcana infliction. | Shifts focus to other sources for stacking, emphasizing her Talent and Ultimate for buildup. |
| Ultimate (Bliss of Otherworld's Embrace) | Deals Wind DMG; inflicts Epiphany (25% increased DMG taken); treats Arcana as multiple DoTs. | Adds 50% chance for extra Arcana on stack gain; stacks no longer halve after DMG; removes multi-DoT treatment. | Improves stack consistency and sustain, reducing ramp-up time in boss fights. |
| Talent (Impair) | Arcana stacks deal DoT at turn start; resets to 1 after DMG; ignores DEF at 7+ stacks; inflicts adjacent DoT at 3+. | Treats Arcana as multi-DoTs; halves stacks instead of resetting; ignores 20% DEF always; allows overflow stacks (removed after DMG); removes adjacent effects. | Core DoT mechanic is streamlined for higher peaks, with constant DEF ignore boosting overall output. Halving over resetting maintains momentum. |
| Bonus Ability (Viscera's Disquiet) | 65% chance for extra Arcana on debuffed enemies. | 65% chance to inflict 5 stacks when Black Swan attacks. | Massive stack acceleration, enabling quicker max stacks in aggressive playstyles. |
| Bonus Ability (Goblet's Dredges) | 100% chance for DEF reduction (max 3 stacks). | 65% chance for 1 Arcana per DoT; 100% DEF reduction after Basic/Ultimate (3 turns). | Ties debuffs to DoT procs, enhancing synergy with Kafka-like triggers. |
| Bonus Ability (Candleflame's Portent) | +DMG based on Effect Hit Rate (max 72%). | Applies DMG boost to all allies based on her Effect Hit Rate (max 72%). | Transforms her into a team enabler, benefiting DoT squads like those with Sampo or Guinaifen. |
| Eidolon 2 (Weep Not For Me, My Lamb) | Inflicts 6 Arcana on adjacent upon enemy defeat. | Inflicts 30 Arcana on all enemies at battle start. | Explosive opener for E2 owners, ideal for wave-clearing modes. |
| Eidolon 4 (In Tears We Gift) | Epiphany reduces Effect RES by 10%; regenerates Energy on defeat/turn start (max once). | +20% DMG taken in Epiphany; removes Energy limit (8 per turn/defeat). | Better energy flow and vulnerability amp for sustained DoT pressure. |
| Eidolon 6 (Pantheon Merciful, Masses Pitiful) | +1 extra Arcana per infliction. | +20 max Arcana stacks; 65% chance for Arcana on teammate attacks; +1 extra per Black Swan infliction. | Turns her into a DoT monster, with team-wide stacking for hyper-scaling damage. |
These buffs address Black Swan's previous issues with slow ramp-up and single-target focus, making her a powerhouse in DoT teams. Pair her with Kafka for detonation synergy or Ruan Mei for break efficiency. In the 4.0 meta, she could dominate against bosses vulnerable to Wind or debuffs, though high Effect Hit Rate relics are still essential.
Conclusion: A Meta Shift for Legacy Characters
Sparkle becomes the go-to for SP-intensive crit teams, while Black Swan solidifies DoT as a viable archetype. Players with these characters should revisit builds, and newcomers might consider pulling during their reruns. Overall, this update promotes diversity in team building, rewarding long-term investment in the roster.



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