Genshin Impactis an ever-evolving game, and with the introduction of Fontaine, HoYoverse has expanded onGenshin Impact’sdiverse combat system even further. This is through the brand new “Arkhe” system, a special form of energy exclusive to characters hailing from Fontaine. The Arkhe system takes the form of different flowers of energy, Pneuma, and Ousia. If you look closely at your Fontaine characters, such as the Hydro Traveler, you might notice they can utilize “Pneuma” and “Ousia” within their attacks. But what are Pneuma, Ousia, and the Arkhe system inGenshin Impactexactly?

What are Pneuma and Ousia inGenshin Impact?

Pneuma and Ousia are described as “the properties found in the life forms, earth, air, and water veins of Fontaine.” It is the “collision between energies of different properties [that] causes annihilation and the production of greater energies.” However, what’s more important in the case ofGenshin Impactis how Pneuma and Ousia attacks interact with certain enemies in the game. When fighting the new “Mek” enemies inGenshin Impact, you might notice using Pneuma or Ousia attacks can disable these enemies, giving you the upper hand in battle.

When fighting a Mek enemy, you need to pay close attention to which Arkhe alignment they have. If you are fighting a Mek with apurple glow,these enemies are Ousia-aligned. If you are fighting a Mek with ayellow glow,you are fighting an enemy that’s Pneuma-aligned. To gain the upper hand in battle against these enemies, you have to use an attack with theopposite Arkhe energyto Overload them, decreasing their energy. For example, if you are fighting an Ousia-aligned enemy, hitting them with a Pneuma attack will Overload them, and vice versa.

Genshin Impact Arkhe System

It is possible to utilize the power of the Arkhe system without having a character with these capabilities. While exploring Fontaine, you might come across objects known as Pneumousia Blocks. When interacting with these objects, your next attack will be imbued with the power of a Pneuma or Ousia attack. (Interacting with a purple Pneumousia Block will result in an Ousia-imbued attack, and vice versa.)

Occasionally, you will encounter different Pneuma and Ousia-related puzzles while exploring Fontaine. Generally, the rule of thumb with these puzzles is to simply hit the puzzle with an Arkhe attack corresponding to the opposite element. (For example, if you come across a yellow Pneuma relay, hit it with an Ousia attack.)

Genshin Impact Arkhe System 2

Which characters inGenshin Impacthave Pneuma and Ousia attacks?

As Fontaine is currently brand new, there aren’t many characters in the game who have Arkhe attacks. So far, these are your only options:

To better explore Fontaine, consider building these characters so you can easily defeat Mek enemies and solve Pneuma and Ousia-related puzzles. DownloadGenshin Impacton itsofficial website here.

Genshin Impact Arkhe System 3

Joshua Chu

Joshua Chu is a Contributing Writer for PC Invasion since June 2021. His undying love for live-service games like Overwatch 2, Valorant, and Honkai: Star Rail (amongst other soul-rending games) has led him to spend hours and hours on his PC. After earning his Print Journalism degree at Pennsylvania State University, he proceeded to freelance for a variety of sites, with other bylines including Gamepur and Kotaku. He is probably sad he demoted in rank in Overwatch.