One of the free characters in Genshin Impact is the Cavalry Captain: Kaeya of the Knights of Favonius. He's one of the versatile characters in the game that can play any role on your team. But in this guide, I will show you an Elemental Mastery Build for Kaeya.
Here is the simple build for the coolest Cavalry Captain in Genshin Impact
The weapon will be the Iron Sting. The role of Kaeya in this kind of build is to trigger an Elemental Reaction like melt, freeze, or super-conduct. In order to maximize the damage of Kaeya's elemental skill, getting an Iron Sting will help you maximize the damage of elemental reactions.
For the Artifacts, you can get 2 PC Noblesse Obliged + 2 PC Blizzard Strayer with ATK% Sands, Cryo DMG Bonus Goblet, and CRIT Rate% for the Circlet.Lastly, for the talents. Prioritize increasing Frost Gnaw and Glacial Waltz.Here is a sample video of the Elemental Mastery Build for Kaeya.
I will also do a separate guide for the team composition to give you an idea of how Kaeya is versatile to any characters in the game.Keep it cool!
Happy hunting ~