Quick Take: Picture this – slapping on 4pc Thundering Fury drops Cyno's Energy Recharge (ER) down to 100-110% in Quickbloom setups, compared to the usual 180-200% grind without it. It works by sneaking in extra Elemental Skill casts during his Burst, thanks to those Electro reaction cooldown cuts that generate more particles. Aim for 7 E casts over 18 seconds, pulling in 9.33 particles just from Rite of the Wolf's Path. Switch to Aggravate teams, and you're looking at 120-140% ER, freeing up stats for CRIT and EM to crank up that DPS.
Ever wondered why Cyno feels like a battery hog without the right setup? Let's dive into his energy quirks and how Thundering Fury flips the script. I've tinkered with this in the Abyss more times than I can count – trust me, it changes everything.
Getting a Grip on Cyno's Energy Flow and That Baseline ER Headache
Cyno's Burst guzzles 80 Energy and sticks around for 18 seconds, packing in 5 Rite casts (starting at 10 seconds base, plus 4 seconds each, with a 3-second cooldown mid-Burst). His Skill spits out 3 particles on a normal cast, but drops to 1.333 during Rite; the Burst itself kicks off some particles too. At level 90, his base ER sits at 100%, but real talk – you need 140-200% to handle the 20-second Skill cooldown and that 18-second on-field commitment.
In solo runs, you're lucky to squeeze 4-5 Skill casts for about 6.66 particles from E alone, which barely scratches the 80 Energy itch. Crunch the numbers on a level 90 build: 100% base ER, weapon adding 0-30%, and a 25-second rotation for 90% uptime. Pump Burst and Skill to level 10 – that's an 80-cost Burst, 234.72% ATK on normals, and 282.24% AoE in Rite.
Cyno's Thirsty 80-Energy Burst and Its 18-Second Lock-In
Hitting 90% uptime means netting 80+ Energy every 25 seconds; unsupported teams demand 180% ER to scrape together ~40 from particles. I've logged energy shortfalls in domains – it's brutal. End Burst right at 18 seconds. Funnel particles from teammates before Burst by swapping early.
The Elemental Skill's 7.5-Second Cooldown and Particle Trick
Outside Burst, Skill's on a 7.5-second cooldown; inside, it shrinks to 3 seconds, cranking out 1.333 particles per Rite. Five casts during Burst? That's 6.66 particles. Toss in 3-4 from Normals and the initial Burst, and you're at 20-30 Energy sans support. Cast E right after Q. Time it every 3-4 seconds in Endseer stance (those 4-second intervals, 1.4 seconds each). Double-check those 1.333 particles per Rite in-game – it's clutch.
ER Demands Without Any Artifact Set Magic
No sets? Solo ER hits 180-200% from 4-5 E casts; add one Electro battery, and it eases to 120-140%. Artifacts can sub in 20-50% on a 46% ER sands. Grab ER sands if your weapon lacks it. Shoot for 180% in non-reactive squads. Test in Spiral Abyss – if uptime dips below 80%, stack a battery.
How Cyno's Kit Plays Nice with Energy Funneling
Teammates like Fischl funnel 10-15 Energy pre-Burst. His C4 restores 15 Energy per Burst through 5 reactions, trimming team ER by 10-15%. A4 passive? It pumps +250% EM into 3 Duststalker Bolts (each dealing 100% ATK Electro Skill damage). Wrap rotations with a battery's Q. Steer clear of mid-Burst swaps. Lean on C4 for that 10-15% breather.
For the full Cyno blueprint, swing by our pillar content on optimizing Electro hypercarries. (Editor's note: If you're building your first hypercarry, start here – it's a game-changer.)
Unpacking 4pc Thundering Fury's Inner Workings
4pc Thundering Fury gives 2pc for +15% Electro DMG Bonus; the 4pc amps Overloaded, Electro-Charged, Superconduct, and Hyperbloom by 40%, Aggravate by 20%, and – here's the gold – cuts Skill CD by 1 second on Quicken or transformative reactions (every 0.8 seconds, while on-field). Cyno's Burst Normals poke at auras to trigger reactions, bumping him to 7 E casts instead of 4-5, with 10-15 triggers over 18 seconds slashing CD to 1-2 seconds. Farm it from Mondstadt's Domain of Blessing: Midsummer Courtyard – prioritize Electro DMG goblets.
Apply Dendro or Hydro auras before Burst for Quicken. Trigger on N2-N4 hits. Recast E every 0.8 seconds in training mode. I've seen players overlook this – don't be that guy.
Breaking Down the Full 4-Piece Set Perks
The 4pc juices transformative reactions by 40% and Aggravate by 20%; CD cuts hit the equipper on-field, while damage amps spread team-wide. Cyno's passives add +150% EM to Normals and +250% to those Bolts (3 per Judication). In Aggravate, snag +20% DMG with 10-12 reductions, though the 3-second base caps at 6-7 casts. Equip the full 4pc on Cyno. Go EM sands. Test Bolt damage in domains.
What Sparks Those Cooldown Reductions (All About Electro Reactions)
It fires on Quicken (Dendro + Electro) or other transformatives every 0.8 seconds, knocking off 1 second (never below 0). Infused Normals during Burst proc it reliably. No reactions? Stuck at 5-6 E casts. Kuki in Hyperbloom adds triggers; Fischl locks in Quicken. Slap on a Dendro aura. Hit with Electro N1 for Quicken. Keep it rolling with Normal hits.
How It Meshes with Quicken, Aggravate, and Hyperbloom
Quicken unlocks Aggravate (+20% DMG and CD cuts); Hyperbloom piles on transformative procs. Quickbloom (Nahida/Yelan/Kuki) nets 10-15 triggers for 7 E. Nahida's Dendro seals Quicken; Yelan's Hydro keeps it flowing. Nahida E then Q for those rings. Cyno Q into the reactions. Kuki E for Hyperbloom after Normals.
Does TF Actually Kick In During Cyno's Burst? (Clearing Up the Confusion)
Absolutely – the CD reduction hits that 3-second Rite cooldown through on-field Normals. It lets you spam for extensions and particles; expect 2-3 cuts per 4-second Endseer window in reaction-heavy teams. Jump into Q. E right away. Cycle N4E on stances.
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Crunching the Numbers: How Extra E Casts from Thundering Fury Pay Off
Base cooldown's 7.5 seconds outside, 3 inside; TF peels off 1 second per trigger (every 0.8 seconds), landing 2-3 reductions per Endseer for 7 E in 18 seconds versus 5 without. Each bonus E adds 1.333 particles, shaving 20-40% off ER needs. The math: Particles = E casts × 1.333; 7 E means 9.33 from Rite, plus Burst and Normals for 40-60 Energy per rotation. Aggravate? +1-2 E saves 15%.
Assume an 18-second Burst with 4-second Endseer gaps. Tally 10-15 triggers in Quickbloom. Subtract reductions from base CD. Multiply by 1.333 for particles.
Mapping Cooldown Cuts in Peak Rotations
In the sweet spot: 6-8 reductions across 18 seconds, effective CD around 1.5 seconds. Enter Q, E at 0 seconds, N4E at ~4 seconds (with 2 procs), repeat for 7 casts. Nahida and Yelan deliver 2 procs per window; no reactions means 5 E. Time that first E post-Q. N4 to trigger. Recast E in under 2 seconds.
How Many Bonus Skill Casts Can You Expect Per Burst?
4TF tacks on 2-3 extra E (7 total vs. 5); C1's +20% NA speed locks in 7. Quickbloom hits 7 E; Aggravate, 6. Practice those N4E loops. Use the purple eye for Endseer. Dial back to 6 E if ping's over 100ms.
Particle Windfall from Those Extra Casts
Per Rite: 1.333 particles; 7 E = 9.33, fueling 40-60 Energy at 50% reaction uptime and cutting ER by 25-30%. +2 E? That's +2.66 particles (10-20% ER equivalent). Log particles in your tests. Aim for 80+ Energy. Tweak the team for more triggers.
The Full Energy Payback: Math That Eases ER Woes
Around 9.33 from 7 E, plus Burst and NA, totals 40-60 Energy – enough for 90% uptime at 100-140% ER. Without TF, 6.66 from 5 E demands 180%. Those extra casts stretch to the full 18 seconds (10 base +4 per Rite, 2 initial +5 extra). Simulate in an optimizer. Verify 90% uptime. Shift excess ER elsewhere.
ER Showdown: 4TF Versus Other Set Options
In solo Electro, 4TF needs 140-160% ER against 180-200% for Gilded Dreams or Gladiator's Finale, courtesy of those 7 E particles. Add Fischl? 4TF at 100-110% vs. 115-130%. Kuki teams: 110-120% vs. 125-140%. Favonius procs trim another 10-15%; R5 Kitain slashes 50-65% without TF, pairing with 4TF for 60-80%. Flower of Paradise Lost in Quickbloom? 125-140%.
Plug the set into an ER calculator. Simulate 7 E for TF's particle boost. Note the 20-40% savings in reactive teams. For a head-to-head on 4TF vs. Gilded Dreams, peek at our sibling guide on artifact set matchups.
Solo Cyno (No Battery): 4TF 140-160%; Gilded 180-200%; Gladiator 180-200%.
+Fischl: 4TF 100-110%; Gilded 115-130%; Gladiator 140-160%.
Quickbloom (Nahida/Yelan/Kuki): 4TF 100-110%; Flower of Paradise 125-140%.
Aggravate (Fischl/Nahida/Zhongli): 4TF 120-140%; Gilded 130-150%.
No-Battery Solo Baseline ER
Solo with 4TF: 140-160% thanks to extra E; non-TF pushes 180-200%. Use Scarlet Sands (0% ER). Sub for 100-140%. Test if it covers 80 Energy.
4pc Thundering Fury ER Targets by Squad Type
Quickbloom: 100-110%; Double Electro (Fischl/Beidou): 120-140%; Baizhu/Nahida: 110%. Pick a reactive team. Cap ER at the threshold. Swap excess to CRIT.
What Gilded Dreams and Gladiator's Finale Demand for ER
Gilded: 115-130% with Fischl (no extra E); Gladiator: 140-160%. TF saves 10-20% through 2-3 bonus casts. Farm TF first. Fall back to Gilded if reactions fizzle. Recalculate on set swaps.
Real ER Hits with Go-To Batteries Like Fischl or Dendro Traveler
Fischl: 100-110% on 4TF (pre-E particles); Dendro Traveler: 120-140% (Quicken help). Fischl E then Q before Cyno. Traveler E for the aura. Track 90% uptime. Dig deeper in our Cyno battery characters guide.
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Real Rotations and Frame Timing Tips
For 4TF on C0/C1: E (N1) Q E, then 6[N4E] for 7 Skills across 3 Endseer windows (4 seconds apiece). Or try E (N1) Q E 4[N4E] N5 N2 E (6 Skills). Frames: Endseer at 4s, 8s, 12s (1.4s duration); N4E lands 3 Bolts. It generates 9.33 E particles in 18s; sans TF, just 5 E.
Quickbloom flow: Kuki Q > Yelan E Q N1 > Nahida E Q > Kuki E > Cyno E (N1) Q E 6[N4E]. Teammates set auras (~10s). Cyno Q E into N4E cycles. Wrap at 18s, swap out. Videos in our Cyno rotation optimization guide make it crystal.
Everyday Quicken Rotation (Cyno/Nahida/Fischl/Zhongli)
Fischl E > Nahida E Q > Zhongli E Q > Cyno E Q E 5[N4E] (6 E total). Fischl particles pre-Q; reactions fuel TF. Fischl as battery. Nahida for Quicken. Zhongli shield. 130% ER does the trick for Cyno.
Nailing Skill Timing in That 18-Second Burst
Drop E at Endseer: ~0s post-Q, 4s (N4E), 8s, 12s, 16s. C1 speed smooths N4. Watch the eye indicator. N4 straight into E. Tweak N5E for laggy ping.
Energy Snapshots and Funnel Sweet Spots
Burst snapshots energy at Q; funnel pre-Burst (Fischl Q). Off-field particles still count. Battery Q 5s before Cyno. Snag orbs mid-rotation. Hit 80+ Energy.
Tweaking Rotations for Your ER Level
At 100% ER: 7 E in Quickbloom. 120%: 6 E in Aggravate. Test uptime. Cut to 6 E if short. Bolt on a battery for gaps.
How Team Setup Amplifies ER Savings from TF
Quickbloom (Nahida/Yelan/Kuki): 100-110% ER with 10-15 triggers and 7 E. Aggravate (Fischl/Nahida/Zhongli): 120-140% from sparser procs. Baizhu + Nahida: 110% (14s Dendro); Yaoyao + Collei: 120% (shorter apps). Double Electro eases ER but dials back triggers.
Top-Tier Relief (Quickbloom): Nahida E Q rings; Yelan Hydro; Kuki Hyperbloom – procs every 0.8s.
Solid Middle (Aggravate): Fischl E battery; Nahida Quicken; Zhongli shield – +10% ER bump.
Bare Minimum (No Dendro): 160%, 4 E – time to swap sets.
Include 1-2 Dendro for Quicken. Add Fischl battery. Test triggers in domains. More variants in our Cyno team composition guide.
Quicken Squads: Cranking Electro Reaction Hits
Quicken from Dendro + Electro sets up Aggravate on Normals; Nahida/Yelan: 10-15 triggers, 7 E. Nahida leads. Yelan E Q. Cyno dives into the aura.
Battery Picks: Fischl, Electro Traveler, Raiden Weigh-In
Fischl: +10-15% ER from E particles; Traveler: Quicken, 120% ER. Raiden funnels but messes auras. Fischl E pre-Q. Traveler E for Dendro. Skip Raiden mid-Burst.
Dendro Helpers and Their Energy Perks
Nahida: Steady app, 100% ER; Baizhu: Long Dendro + shield, 110%. Collei: Brief, 120%. Baizhu N1 E Q. Nahida rings. Stretch auras to 20s+.
When Team Comp Makes TF's ER Perk Meh
Non-reactive solo: 140% vs. 180%, no extra triggers. Test reactions. Fall to Gilded. Minimal Dendro if needed.
Shifting Stats: Turning ER Savings into Damage Juice
4TF trims solo ER from 160% to 140% (net 10-15% CRIT DMG gain); Fischl teams at 100% ER let you rock CRIT circlet sans ER sands. Quickbloom? EM sands at 200-300 EM over ER. Substats: ER to threshold, then CRIT (1:2 Rate:DMG), EM, ATK%. Base 50-60% from weapon/sands; 7 E plugs the hole.
ER Savings Worth: 20-40% = +4-6 CRIT/EM rolls.
Against Non-TF: 180% ER costs 15-20% DPS. (My take: It's like trading a crutch for wings – subjective, but I've felt the DPS spike.)
Cap ER at 110% supported. Roll CRIT next. Simulate DPS uplift. EM after cap for reactions.
How Far Can You Trim ER% with 4TF? (Real Ranges)
Solo: 140-160%; Supported: 100-120%. Calculate 9.33 E particles. Subtract from 80 cost. Drop to 90% uptime floor.
Substat Showdown: ER% Against CRIT, EM, ATK%
Post-cap 5% ER = 2.5% CRIT DMG; EM trumps ATK in reactions. ER subs first. 1:2 CRIT after. 200+ EM in Quickbloom.
When to Quit Rolling ER on Artifacts
Halt at threshold (110% with subs); extra E cushions it. Genshin Optimizer helps. Test rotation energy. Settle at 90% uptime.
From ER Cuts to DPS Boosts: The Calc
Swap 30% ER to CRIT: +10-15% DPS. Baseline non-TF DPS. Stat swap. Compare sim outputs.
Weapons, Consts, and ER Tweaks
Scarlet Sands (0% ER): 140% total with 4TF extra E. Primordial Jade Winged-Spear (no ER): 140%, full subs. White Tassel (F2P, 23.4% CRIT Rate): 110% with Fischl, +24% NA DMG.
Kitain (ER weapon): 60-80% with 4TF (double procs on extra E); Engulfing Lightning turns excess ER to ATK. Deathmatch: 110% ER.
Low ER Picks: Scarlet Sands – sub 100-140%.
ER Boosters: Kitain – 50-65% cut, 7 E synergy.
CRIT Leans: White Tassel – flip ER to damage.
Choose by ER gap. R5 Kitain procs. Optimizer test. Best Cyno weapons in our dedicated article.
Weapon Face-Off: ER for Scarlet Sands vs. PJWS vs. White Tassel
Scarlet Sands: 140% (0% base); PJWS: 140% (CRIT); White Tassel: 110% (+CRIT). Scarlet EM scaling. White for F2P. Sub adjusts.
C1's Role: Does +100 EM Touch ER?
C1's +20% NA SPD post-Burst nails 7 E (vs. occasional 6 on C0), +5% particles. No EM-ER tie. Use SPD timing. C0 baseline 100-140%. C1 smooths combos.
ER Weapons: Still Viable for Cyno?
Kitain: 50-65% cut with TF; skip if threshold's met. Kitain for low ER. Scarlet if capped. Engulfing excess to ATK.
Const Breakpoints and Build Shifts
C1: Easier 7 E (+5% particles); C4: +15 party Energy (10-15% relief); C2: +50% Electro DMG on reactions. C0 works fine. C4 for multi-waves. -10% ER on C4. C6 Bolts add little ER change.
Pitfalls and Fixes: Dodging Common Cyno Traps
Blow past Endseer with 4TF? 5-6 E instead of 7, +130% ER; ping kills N4E. TF craves Dendro for Quicken – none? 4 E, 160% ER. Mid-Burst swaps nix extensions.
Timing Slip: Miss stances – drill N4E.
Reaction Drought: 160% ER – Dendro up.
Ping Woes: 6 E hybrid.
Practice in training. Aura check pre-Q. Calculator test. Non-TF fallback for simplicity.
Myth Bust: TF CD Ignores Burst (Spoiler: It Doesn't)
It hits 3s Rite via N hits. Confirm on-field. Quicken trigger. Time the cuts.
ER Overkill: 140% vs. 180% Waste
140% covers TF; 180% tanks DPS. Simulate particles. Cap threshold. Reallocate.
Forgetting Team Energy in the Math
Batteries like Fischl add 10-15 Energy. Rotation include. Pre-Burst funnel. Recalc.
Artifact Luck: Settle or Farm TF Domain?
Decent subs at 110% ER? Settle. Below? Farm. Optimizer >80% score. Midsummer Courtyard grinds. 2pc hybrid if needed.
Build Tips and ER Quick-Glance
Farm 4pc TF; 100-120% ER supported (EM sands if subs hit); test 7 E; 1:2 CRIT reallocation. Mains: Electro DMG goblet, CRIT circlet; subs ER > CRIT > EM.
Quick ref:
Quickbloom 4TF: 110% ER
Aggravate 4TF: 130%
Solo 4TF: 140-160%
Non-TF: +40-60%
Sample: 4TF + Scarlet Sands + Fischl – 100% ER, EM sands, 250 EM. Gilded alt: 130% ER, CRIT heavy. Farm TF. ER sub cap. Rotation practice. Optimizer run. Tools for tweaks.
ER Ranges by Set and Squad
4TF Quickbloom: 100-110%; Gilded Aggravate: 130-150%. Team cap. Weapon adjust. 90% uptime.
Stat Order Post-ER Cap
CRIT Rate/DMG (1:2), EM (200-300), ATK%. CRIT rolls next. EM for reactions. No ER sands after.
Sample Builds: 4TF vs. Gilded with ER Side-by-Side
4TF: 110% ER, 7 E Quickbloom – better uptime. Gilded: 130% ER, 5 E – raw damage. Sim both. TF for reactive. Farm smart.
ER Calc Tips
Input team/weapon/C0; subtract 7 E (~10 Energy). Base 100%. Add sources. 90% uptime. Optimize your Cyno with our interactive ER calculator – plug in team and weapon for custom thresholds. Hop on Discord to share builds and snag expert tips!
FAQ
How much ER does Cyno need with 4pc Thundering Fury?
Quickbloom calls for 100-110% ER from 7 E casts (9.33 particles, 40-60 Energy, 90% uptime). Solo: 140-160% (20-40% relief over non-TF 180-200%). Run Nahida/Fischl rotations, tweak subs for >80% uptime.
Does Thundering Fury cooldown reduction work during Cyno's burst?
Yep, 1s off the 3s Rite CD via Electro reactions (every 0.8s), hitting 6-7 casts in 18s with Quicken. Base 5 without. Dendro pre-Burst, N4E in Endseer.
How many extra Elemental Skill casts does 4TF give Cyno?
2-3 extra (7 total vs. 5), +2.66-4 particles (1.333 each). Quickbloom: 7 with 6-8 reductions; Aggravate: 6. N4E practice, C1 speed, track 9.33 E particles.
Is 4pc Thundering Fury better than Gilded Dreams for Cyno?
In Quickbloom, yeah: 100-110% ER vs. 115-130%, +10-20% relief plus Aggravate DMG from extra E. Solo non-reactive? Gilded edges damage. TF with Dendro; DPS sim it.
What is the optimal ER threshold for Cyno in Quicken teams?
100-110% on 4TF (10-15 triggers, 7 E, 90% uptime). Nahida Quicken, Fischl battery; subs post-weapon/sands. Kitain to 60-80%; test 80+ Energy.
Which weapons reduce Cyno's ER needs the most?
R5 Kitain: 50-65% slash in 4TF (double procs on extra E, 60-80% total). Scarlet Sands (0%): 100-140% via TF. White Tassel: 110% F2P with CRIT. ER weapons for reactive; Burst proc tests.
Related Guides Callout:
Complete Cyno Build Guide
Cyno Team Composition Guide
Best Cyno Weapons Article
4TF vs Gilded Dreams Comparison
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