Game Mechanic Guide

What is Elemental Mastery in Genshin Impact? Full Guide

Elemental Mastery (EM) increases the damage of Elemental Reactions. For Transformative Reactions (Vaporize, Melt, Overloaded, Hyperbloom, etc.), EM provides a direct damage multiplier. For Amplifying Reactions, EM increases the base multiplier above 1.5x/2x. Most reaction-based supports should target 800-1000 EM.

What is Elemental Mastery?

Elemental Mastery is a stat that governs reaction damage. Every 100 EM provides approximately: +35% Vaporize/Melt damage, +30% Overloaded/Shattered damage, +25% Hyperbloom damage. The formula follows diminishing returns — each additional 100 EM provides less benefit than the previous 100.

EM Breakpoints By Character

Nahida: 800-1000 EM (full support), 400-600 EM (hybrid). Kazuha: 800-1000 EM. Sucrose: 600-900 EM. Kuki Shinobu: 800-1000 EM (Hyperbloom). Raiden Shogun: 200-300 EM (National team, not for Hypercarry). Xiangling: 100-200 EM (substat only).

EM vs Other Stats

For reaction supports like Kazuha and Sucrose: EM is the most valuable stat in all slots. For reaction DPS like Hu Tao: EM is valuable up to 150-200, after which CRIT/DMG stats become more important. For Hyperbloom triggers (Kuki, Raiden): EM is the ONLY stat that matters — ATK and CRIT don't affect Hyperbloom damage at all.

How to Increase EM

Weapons: Sacrificial Fragments (221 EM), A Thousand Floating Dreams (265 EM), Freedom-Sworn (198 EM), Xiphos' Moonlight (165 EM), Iron Sting (165 EM). Artifacts: Sands/Goblet/Circlet main stat can roll EM (46.6%/46.6%/46.6%). Set bonuses: Wanderer's Troupe (80), Gilded Dreams (150), Flower of Paradise Lost (80). Resonance: Dendro resonance gives 50 EM on reaction triggers.