Herta is a 4-star Ice Mage (Erudition) in Honkai: Star Rail. Herta is a 4-star Ice Mage (Erudition path) built around a reactive Follow-Up attack loop. Her Talent — 'Fine, I'll Do It Myself' — fires an AoE Ice Follow-Up ATK automatically whenever any ally drops an enemy to 50% HP or below, making her output entirely passive and team-synergy dependent rather than action-economy dependent. Her Skill punishes high-HP targets with a 20% DMG bonus, and her Ultimate lands a wide AoE nuke hitting 240% ATK at max level. She is not a standalone carry; she's an amplifier who converts your team's kill pressure into bonus Ice hits. In multi-wave content and modes with grouped, tanky enemies, that loop fires frequently and she pulls her weight well above her 4-star station. Against single targets that die fast, she barely participates. She's a budget AoE option — accessible, reasonably Eidolon-efficient, and an honest pick for players without premium Ice carries.
| Last Review | Last Build Update | Last Teams Update | Last Profile Update |
|---|---|---|---|
| 1.0 | 1.0 | 1.0 | 2026-03-07 |

Herta is a 4-star Ice Mage (Erudition path) built around a reactive Follow-Up attack loop. Her Talent — 'Fine, I'll Do It Myself' — fires an AoE Ice Follow-Up ATK automatically whenever any ally drops an enemy to 50% HP or below, making her output entirely passive and team-synergy dependent rather than action-economy dependent. Her Skill punishes high-HP targets with a 20% DMG bonus, and her Ultimate lands a wide AoE nuke hitting 240% ATK at max level. She is not a standalone carry; she's an amplifier who converts your team's kill pressure into bonus Ice hits. In multi-wave content and modes with grouped, tanky enemies, that loop fires frequently and she pulls her weight well above her 4-star station. Against single targets that die fast, she barely participates. She's a budget AoE option — accessible, reasonably Eidolon-efficient, and an honest pick for players without premium Ice carries.