Genshin Impact · UPGRADE MATERIAL

Elixir of the Heretic

Used in supported upgrade goals for 2 records. Open a record to choose a target and calculate the exact requirement.

About Elixir of the Heretic

Character Level-Up Material

A vial found in the heretical testing grounds after defeating the false god that usurped the moon. For centuries, self-proclaimed scholars have crawled beneath the weight of the six cardinal prohibitions, their studies little more than circular reasoning and empty words. The pursuit of truth should know no bounds — by this measure, those condemned as heretics by the world are the truest seekers of knowledge.

Where to obtain it

Lv. 70+ The Doctor Challenge Reward
Obtained from the Crafting Bench Conversion Tab

Used by the supported upgrade goals listed below. Requirements depend on the selected current and target levels.

Owned Elixir of the Heretic

WHERE IT FITS

Characters and equipment that use this material

Electro★★★★

Alyosha

Released Aug 12, 2026Electro field controller whose marked-target companion attacks and restores HP to nearby active characters.Guide

Alyosha is an Electro polearm user whose skill applies Hunter's Mark and whose burst summons Tugarin into a taunting field. Tugarin attacks nearby opponents every two seconds, prioritizes marked opponents, and restores HP to nearby active characters at 120% of Alyosha's ATK. The burst costs 70 Energy. His skill has a tap AoE mode and a hold aiming mode that increases his interruption resistance while aiming.

Geo★★★★★

Linnea

Released Apr 8, 2026Geo support who combines team healing, resistance reduction, and Lunar-Crystallize support. Consider Linnea when your party can trigger Hydro Crystallize and you want her DEF to support both healing and that reaction.Guide

Linnea is a Geo bow character whose summon Lumi attacks nearby enemies, reduces their Geo RES, and can heal the active character through her Burst. Her passive converts party members’ Hydro Crystallize reactions into Lunar-Crystallize, with a DEF-based bonus to that reaction’s Base DMG. Her value therefore depends on having Hydro Crystallize triggers and, for the extra Elemental Mastery benefit, a Moonsign character active.