Arlan HSR build
Arlan
Arlan converts protected HP loss into Skill-Point-free Lightning damage and an area Ultimate.
Lightning
Destruction- Role
- Low-HP Lightning carry
- Version
- 4.4
- Reviewed on
- August 13, 2026
Recommended build
Light Cone
On the Fall of an AeonOn the Fall of an Aeon supplies stacking ATK and damage after Weakness Break without requiring low HP, giving Arlan the strongest stable free baseline.
The Unreachable SideThe Unreachable Side supplies CRIT Rate and Max HP, then rewards HP loss with damage that naturally follows Arlan's Skill loop.
A Secret VowA Secret Vow gives unconditional damage and doubles down when Arlan's HP percentage is lower than the enemy's, his normal combat state.
It is a standard four-star Warp cone, not a Battle Pass reward.
Relics
Scholar Lost in Erudition combines CRIT Rate with Skill and Ultimate damage, matching both halves of Arlan's damage cycle.
Two Band pieces plus two Scholar pieces keep unconditional Lightning DMG and CRIT Rate when the four-piece substats are worse.
Planar Ornaments
Rutilant Arena favors Arlan's repeated Skill damage once its CRIT requirement is met.
When to use it : Reach 70% CRIT Rate.
Inert Salsotto lowers the CRIT requirement and boosts Arlan's Ultimate when Rutilant's threshold is not realistic.
When to use it : Reach 50% CRIT Rate.
Team lineup
Sparkle advances Arlan without starving the team, Tingyun adds ATK and Energy, and Aventurine shields Arlan without erasing his missing-HP bonus.
When to use it : Aventurine must shield before Arlan starts spending HP; avoid a healer in this slot.
Compare the options — Arlan
Choose based on your equipment and the stated conditions. These tables bring together the guide’s qualitative recommendations, without measured damage comparisons.
- Guide version
- 4.4
- Recommendations reviewed
- Assumed role
- Low-HP Lightning carry
The guide’s stat targets and rotation provide the context. Eidolons, superimpositions, substats and enemies may change the choice; options are not evaluated at equal investment.
On small screens, scroll the table horizontally to compare columns.
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | On the Fall of an Aeon supplies stacking ATK and damage after Weakness Break without requiring low HP, giving Arlan the strongest stable free baseline. | No additional condition documented in this guide. It is permanently available and superimposable in Herta's Store. |
| Alternative | The Unreachable Side supplies CRIT Rate and Max HP, then rewards HP loss with damage that naturally follows Arlan's Skill loop. | No additional condition documented in this guide. |
| Accessible option | A Secret Vow gives unconditional damage and doubles down when Arlan's HP percentage is lower than the enemy's, his normal combat state. | No additional condition documented in this guide. It is a standard four-star Warp cone, not a Battle Pass reward. |
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Scholar Lost in Erudition combines CRIT Rate with Skill and Ultimate damage, matching both halves of Arlan's damage cycle. | No additional condition documented in this guide. |
| Alternative | Two Band pieces plus two Scholar pieces keep unconditional Lightning DMG and CRIT Rate when the four-piece substats are worse. | No additional condition documented in this guide. |
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Rutilant Arena favors Arlan's repeated Skill damage once its CRIT requirement is met. | Reach 70% CRIT Rate. |
| Alternative | Inert Salsotto lowers the CRIT requirement and boosts Arlan's Ultimate when Rutilant's threshold is not realistic. | Reach 50% CRIT Rate. |
Only one option documented: no A/B comparison available.
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Sparkle advances Arlan without starving the team, Tingyun adds ATK and Energy, and Aventurine shields Arlan without erasing his missing-HP bonus. | Aventurine must shield before Arlan starts spending HP; avoid a healer in this slot. |
Trace priority
- Skill
- Talent
- Ultimate
- Basic ATK
Arlan spends HP instead of Skill Points, gains damage as HP falls and uses his Ultimate to spread pressure beyond the primary target.
How to play it
- 1Establish the shielder's protection before Arlan starts spending HP.
- 2Use Skill every turn while protected; this leaves Skill Points to the supports.
- 3Cast Ultimate inside support buffs, then keep Arlan low but above lethal damage.
Sources and methodology
Editorial recommendations are written from released game data, then cross-checked against specialist calculations. They are not copied from a single tier list.
Review method
The build is evaluated around Arlan's no-Skill-Point damage loop, missing-HP scaling and shield dependence. Sustain advice never assumes that repeated healing is neutral to his damage.
- Game data snapshot
- 4.4
- Snapshot commit
- 648b08fb
- Baseline version
- 1.0
- Published on
- Editorial review by
- HoyoWhatpeon
- Prydwen — Arlan build and calculationsChecked 2026-08-13
- Icy Veins — Arlan guide and buildsChecked 2026-08-13
- TurnBasedGameData — Version 4.4 exact snapshotChecked 2026-08-13
- TurnBasedGameData — released Version 4.0 to 4.4 deltaChecked 2026-08-13
- HoYoLAB — Version 4.4 update detailsChecked 2026-08-13
E0 low-HP carry build. Arlan needs a shield: healing him repeatedly removes the missing-HP damage he is built to exploit.
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