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
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.
When to use it : Keep Arlan protected rather than healed above the enemy's HP percentage.
On the Fall of an AeonOn the Fall of an Aeon supplies stacking ATK and damage after Weakness Break without requiring low HP, giving a stable free baseline.
It is permanently available and superimposable in Herta's Store.
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
Inert Salsotto supplies CRIT Rate and boosts Ultimate damage once its easy threshold is met, covering Arlan's main area burst.
When to use it : Reach 50% CRIT Rate.
Rutilant Arena favors repeated Skill damage and is competitive when Arlan already reaches a stronger CRIT baseline.
When to use it : Reach 70% 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.
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.
- 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.