Currency Wars just dropped as HSR's permanent auto-chess mode in v3.7—think Nov 4, 2025 NA (UTC-5), Nov 5 for EU/Asia. We're pitting Topaz (that shiny Gold 5-cost Fire FUA beast) against Dr. Ratio (Blue 3-cost Imaginary debuffer extraordinaire) in some wild off-meta FUA squads. Snag the free Golden Spirit login through v4.0 end for Topaz, or run dual DPS with Topaz/Dr. Ratio/Aventurine/Robin to rack up 4000 Jades from clears plus 1200 bond rewards. Yeah, it's that juicy.
Introduction to Currency Wars and Key Characters
What is Currency Wars in Honkai: Star Rail?
Picture this: 8-10 characters total—4 on-field brawlers, 6 off-field passives cranking out FUA (Follow-Up Attacks, for the uninitiated). Resets biweekly on Mondays at 04:00 server time. Hit 18k points for 225 Jades +1 Pass; first clears net you 4000 Jades +1200 bonds. Auto-sim loves FUA heavies. Recruit from Grey 1 to Gold 5 using gold coins. Pro tip: Hoard 50 gold for +5 interest (+1/10 coins, caps at +3). Slow-roll for Topaz or Dr. Ratio—patience pays.
Here's how to kick it off right:
Econ first: Skip early EXP and shop spends.
Nab duplicates (3x 1* upgrades to 2*).
Trial what you own before dumping coins.
Topaz & Numby Overview
Topaz? Gold 5-cost Fire FUA queen, with Numby auto-FUA'ing Debt Collector targets and stacking Unified True DMG after FUA hits. Needs 5 coins to shine; grab her free via Golden Spirit in v3.7. Slap on a Warp Trotter for off-field synergy—chef's kiss.
Build it like this:
FUA Emblem for +10% Adv/action forward.
Aventurine on sustain duty.
Dual DPS with Dr. Ratio.
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Dr. Ratio Kit Essentials
Dr. Ratio's Blue 3-cost Imaginary kit dishes FUA debuffs like Vuln and Slow, plus ally turn advances. Frontloads those FUA loops beautifully; pairs killer with Topaz for dual DPS. Just 3 coins, and it outpaces late-game high-cost singles.
Quick setup:
Recruit multiples for those star upgrades.
Stack FUA stats.
Layer in Robin for DMG buffs.
Topaz & Numby Off-Meta Builds
Core Team Comps with Golden Companions
Follow-Up Army vibes: Topaz/Dr. Ratio/Aventurine/Robin pumps FUA to the moon. Planet Festivities? Extra Jades for win achievements. 3+ matching chars trigger FUA bonds for Unified True DMG; aim for 7 FUA critters (Topaz + Dr. Ratio + Moze/Cipher/Feixiao/Aventurine/Robin).
Get in on it:
Free Golden Spirit from v3.7-4.0 logins.
Exchange for Topaz (or Ruan Mei/Luocha/Std 5*).
4 on-field DPS, 6 off-field passives.
Rotation Breakdown
Numby auto-FUAs Debt targets while Topaz chills off-field, dual-boosting. Econ game: Hold 50 gold early, emblem mid-game, bonds late. Anti-Grav for SPD; Momentum for SP cycles; Perpetual Engine (Photon Cell x2) auto-Ults everything.
Nail the flow:
No early EXP/shop rushes.
Level up rarities after hitting 50 gold.
Restart if no FUA peeking through.
Damage Simulations
Topaz hypercarry bursts with FUA; Numby scales auto, no SP drain. Dual Dr. Ratio crushes the toughest nodes. Early Gold + Ruan Mei amps DMG huge; swap to Topaz + Robin/Sparkle/Aventurine for alts.
Infinite turns? FUA Emblem on DPS.
Dr. Ratio Off-Meta Strategies
Follow-Up Focused Teams
Dr. Ratio + Topaz/Tingyun + Gallagher (total F2P flex); Hunt March 7th as sub-DPS. FUA Vuln teams spike hard. Tops F2P clears; toss in Ruan Mei/Lingsha for oomph.
Steps to dominate:
Early 3-coin recruits.
Duplicate for upgrades.
Energy Bond your allies.
Spirit Pick Synergies
Golden Spirit Topaz turbocharges Dr. Ratio; double down with 12k Shards. Free C0 5* carries the squad. Stellaron Hunters alt (Topaz FUA + Firefly Ult)—edgy, but works.
Prioritize: Topaz if sustain's thin; dodge meta DPS traps.
Scaling at E0 vs Higher Eidolons
Blue's upgrades unlock mad potential; consistent chip damage vs Topaz's burst. Post-v3.7, FUA rules. Duplicates are king (low 3* > high 1*); mid 2★ Dr. Ratio + Topaz loops turn adv forever.
Head-to-Head Comparison: Topaz vs Dr. Ratio
DPS Output Metrics
Topaz: Gold 5 FUA summon bursts wild. Dr. Ratio: Blue 3 scaling debuffs. Data shows Topaz hypercarry edges early econ chip from Ratio. Both core to FUA Unified True DMG.
Breakdown:
Cost: Topaz 5 coins Gold; Dr. Ratio 3 coins Blue.
Role: Topaz off-field FUA; Dr. Ratio debuff trigger.
Strength: Topaz owns late bonds; Dr. Ratio flexes econ.
Synergy: Dual + Ruan Mei/Lingsha slays.
Play it smart:
Early Dr. Ratio cost efficiency.
Late Topaz hyper.
Mix for balance.
Survivability and Sustain
Topaz + Aventurine locks it down; Dr. Ratio + Gallagher works anywhere. FUA favors summons; Planet Festivities stress-tests it.
Hold 50 gold. Emblem priority.
Clear Speed Benchmarks
Biweekly leaderboards? FUA off-meta owns 'em. Future Feixiao boosts Topaz; no nerfs incoming, MoC FUA synergy; hidden ach clears; 7 FUA late-game.
Golden Companion Spirit Picks Guide
Best Spirits for Topaz Numby
Topaz FUA entry point; free till v4.0 end logins. Stellar Convergence exchanges; edges Dr. Ratio viability.
Grab it:
Login v3.7.
Pick Topaz sans sustain.
12k Shards for extras.
Dr. Ratio Compatible Picks
Ruan Mei/Luocha alts; Topaz dual-kicks it up. Free 5* for F2P clears.
Trial before exchange.
Off-Meta Hidden Gems
Stellaron Hunters mixes; Jade/Robin support. Off-meta? Totally viable. Planet team ach; 3+ bond chars.
Step-by-Step Team Building
Relics and Stats Priority
FUA Emblem core—+10% Adv/action. FUA stats first. Perpetual energy; Anti-Grav SPD; Momentum SP.
Stack:
Emblem on DPS.
SPD via Anti-Grav.
SP with Momentum.
Light Cones Recommendations
Charging Sail for energy alts; auto-Ult hunger. Topaz/Dr. Ratio loops; Photon Cell x2.
Trace Upgrades
Post-econ, level FUA paths; unlock rarities. Lv5+ after 50 gold.
Flow:
Econ hold.
Recruit FUA pieces.
Duplicate upgrades.
Common Pitfalls and Misconceptions
Follow-Up Trigger Errors
FUA stacks Unified with 3+ chars. Ditch non-FUA restarts; skip early EXP.
Slow-roll Topaz/Dr. Ratio.
Spirit Mismatch Issues
Topaz trumps meta for FUA long-haul. Golden investments pay. Check your owns first.
Overlooking Debuffs
Dr. Ratio Vuln is key; Topaz summons amplify. Dual + Robin adv? Glows.
Patch Notes and Future Viability
Recent Balance Changes
v3.7 launch synced Topaz freebie. Biweekly rotations; no nerfs.
Clear Mondays.
Upcoming Buffs Prediction
v3.7+ FUA bonds; Feixiao synergy ahead. Long-term meta staple; MoC parallels.
Long-Term Meta Shifts
Off-meta thrives on duplicates. Gold/Blue balance; post-patch clears; FUA experiments rule.
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FAQs
Is Topaz & Numby better than Dr. Ratio in Currency Wars?
Topaz Gold burst FUA hypercarry shines; Dr. Ratio 3-cost early econ grinds. Dual? Optimal clears.
What are the best Golden Companion Spirit picks for off-meta teams?
Topaz for FUA; Ruan Mei/Luocha alts. Free v3.7-4.0 logins.
How do Topaz follow-ups compare to Dr. Ratio in Currency Wars?
Topaz Numby off-field autos; Dr. Ratio debuff/adv triggers. Both FUA Unified True DMG; mix reigns.
What off-meta teams use Topaz & Numby effectively?
Follow-Up Army: Topaz/Dr. Ratio/Aventurine/Robin. Planet Festivities +Jade ach.
Dr. Ratio Currency Wars build for follow-up attacks?
FUA Emblem debuff focus; Topaz/Tingyun/Gallagher. Early 3-coin recruit.
How to optimize follow-up chains in HSR Currency Wars?
3+ bond chars; FUA emblem +50 gold econ; 7 FUA for late infinite turns.