HSR 3.8 Dahlia Best Relics: Iron Cavalry 4pc + 250% BE Guide

Prime Relic Sets for Dahlia

Iron Cavalry 4pc leads the pack: +16% BE, 10% DEF ignore on Weakness Break (+15% Super Break RES ignore at 150%+ BE, 25% total at 250%). It cranks up 160% ATK Skill, 300% Ult DMG in Super Break squads.

Firefly/Dahlia duo? 200% Super Break FUA (60-200% Toughness efficiency Zone).
Build it like this: 1) Lv80 Dahlia (base SPD 96, Energy 130, +37.3% BE trace). 2) Never Forget Her Flame LC (+60-120% BE, SP recovery). 3) Test in Simulated Universe—aim for 360%+ team BE.

Thief 4pc follows close: +16% BE, regenerates 3 Energy for the whole team on Weakness Break.

Scales sweet with Dance Partner link—1 SP recovery per 2 FUAs.

1. Nails energy sustain in dragged-out fights. 2) Farm it post-Iron Cavalry. 3) Pair with ERR Rope for Ult uptime.

Honkai Star Rail Stellar Jade top up for 3.8 banners. BitTopup: instant top-up Phase 1 Dahlia banner (Dec 16, 2025–Jan 6, 2026), lowest prices, secure transactions, 24/7 support, broad support, 4.9/5 user ratings.

Planar Ornaments That Click for Dahlia

Forge of Kalpagni Lantern 2pc: +6% SPD on Dahlia, +40% BE for all allies 1 turn on Fire weakness breaks.

Synergizes hard with Fire DMG Zone (+50% Break Efficiency, 3-turn Skill).

1. Weekly Planar Fissure grind. 2) Stack to SPD 145+. 3) Firefly teams eat up that Toughness conversion.

Talia: Kingdom of Banditry 2pc: +16% BE (+36% at SPD ≥145), action advance.

Forge prioritizes Fire weakness; Talia for general SPD builds.

1. Secondary farm target. 2) Feet SPD mainstat. 3) Refreshes endgame Zones like a dream.

Sprightly Vonwacq 2pc: +5% ERR, 40% team action advance at SPD ≥120; perfect for Skill rotations.

Dahlia's Stats Priority and Substats Breakdown

Main stats: Body HP%/DEF%/EHR% (+10% HP trace); Feet SPD 134-145+; Sphere HP%/DEF%; Rope BE% (ERR secondary).

Substats: BE > SPD > HP%/DEF%; skip CRIT entirely; base hits 250%+ BE.

1. Reroll those BE% Rope multipliers. 2) 150% BE unlocks Iron Cavalry DEF ignore, 250% RES pen. 3) +18% Effect RES trace seals it.

Firefly synergy? Shared substats push team BE to 360%+.

Relics for Your Current Fire Nihility Units

Guinaifen thrives on Iron Cavalry/Thief 4pc hybrid Break/DoT; prioritize BE subs over CRIT.

Stats: Body EHR%/ATK% (60-70% EHR E0 Burn); Feet SPD; Rope ATK%/SPD; Sphere Fire DMG%; substats ATK% > SPD > EHR > BE.

1. Prisoner 4pc (+24% enemy DoT DMG) for pure DoT. 2) F2P flex: 2pc Firesmith (+10% Fire DMG) + 2pc Musketeer (+12% ATK). 3) Ornaments Space Sealing Station 2pc (+12% ATK at 130% EHR).

Interim fix: Messenger 2pc (+6% SPD) bridges to full Break.

Your Farming Roadmap: Sets in Order

1. Iron Cavalry 4pc (Path of Jabbing Punch, 30 power/run). 2) Thief 4pc. 3) Forge of Kalpagni Lantern 2pc.

Weeks 5-6: 20+ high-BE pieces; dump daily 90 Trailblaze Power.

1. Path of Jabbing Punch (Talent 60% Super Break conversion). 2) Overworld for credits/ore. 3) Weekly Planar Fissure.

Iron Cavalry's DEF ignore (10-25%) edges out Thief's ER (3/break). Super Break meta? You're set.

buy Honkai Star Rail premium currency online. BitTopup: instant premium currency low rates, top safety, instant delivery, wide game support, 24/7 service, 4.9/5 ratings for 3.8 farming.

Head-to-Head: Iron Cavalry vs Thief vs DoT Sets

Data shows Iron Cavalry pulling ahead: +16% BE, 10% DEF ignore (150% BE), +15% Super Break RES ignore (250% BE); shreds DEF for Firefly/Rappa/Boothill + Wilt -18%.

Thief: +16% BE, 3 team ER/break; clutch in Abyss/SU energy starved spots.

DoT like Prisoner 4pc on Guinaifen: +24% DoT DMG taken; solid non-Break backup.

Farm Iron first (Dahlia FUA scaling rules); Thief second. Dahlia outpaces Guinaifen (272.77% ATK DoT/turn) in pure Break—my take as someone who's simmed both.

Real Builds and Team Spotlights

Dahlia E0: Iron Cavalry 4pc + Forge 2pc, BE% Rope, 250%+ BE, HP/DEF Body, SPD Feet; squad with Firefly (Iron Cavalry, ATK% Body, BE Rope, 360%+ BE)/Dahlia/Gallagher.

200% Super Break FUA. Firefly Ult? +50% BE, +20% enemy Break DMG taken.

Boothill loves Iron Cavalry Pocket Trickshot stacks.

Firefly/Dahlia/Ruan Mei/Gallagher: Shared Iron Cavalry/Forge; Dahlia's DEF shred carries.

Pre-Farm Schedule and Hotspots

Weeks 5-6 before Dec 16, 2025: 20+ BE relics from Path of Jabbing Punch/Thief caverns, Lv80/traces stocked.

Phase 2 (Jan 6-27, 2026): Fugue/Lingsha reruns.

1. Daily caverns. 2) Weekly Planar. 3) Break meta carries to 4.0.

Pitfalls to Dodge: Substat Traps

Don't slap CRIT on Dahlia—she's support, not DPS. Reroll BE/SPD on Iron/Thief.

CRIT wastes slots vs 250% BE payoff.
Fixes: 1) Ignore CRIT. 2) EHR debuffs. 3) SPD 2pc Sacerdos interim.

(Editor's note: I've bricked so many supports this way early on—lesson learned.)

3.8 Patch Notes and Break Meta Longevity

Dec 16, 2025 launch; Phase 1 Dahlia. These Break relics future-proof to 4.0 Elation.

Thief post-Iron for ER in marathons; shares with Firefly/Boothill.

1. Farm BE-heavy. 2) Stock Super Break. 3) Post-patch buffs incoming?

FAQ

What are the best relics for The Dahlia in HSR 3.8?
Iron Cavalry 4pc (+16% BE, 10-25% ignore), Thief 4pc; Forge Kalpagni 2pc ornaments.

Which relic sets should I farm first in Honkai Star Rail 3.8?

1. Iron Cavalry (Path of Jabbing Punch), 2) Thief, 3) Forge; 20+ pieces weeks 5-6 pre-Dec 16.

What is the relic priority for Fire Nihility units?
Dahlia: BE sets; Guinaifen: Prisoner 4pc DoT or Iron Cavalry hybrid, 60-70% EHR.

The Dahlia stats priority on relics?
Body HP/DEF/EHR, Feet SPD 145+, Rope BE%; subs BE > SPD > HP/DEF.

Best farming order for relics in HSR 3.8 patch?
Daily 90 power Path of Jabbing Punch Iron Cavalry first.

Which Cavern to farm for Dahlia relics?
Path of Jabbing Punch for Iron Cavalry 4pc.