Honkai: Star Rail itemsOath of SteelOath of Steel is a 3-star item in Honkai: Star Rail.DetailsTypeTrace MaterialGroupMaterialHow to getCalyx (Crimson): Bud of Preservation, Omni-Synthesizer, Oath of SteelCrafting materialsEndurance of Bronze×3More itemsAll items3... 2... 1... Action!60% New Thermal Mining PickaxeAbility PointA Bottle of Draconic TearsA Bottle of Glass MarblesA Bouquet of First SnowAbout DeathAbout HappinessAbout LifeAbout LoveAbout MoneyAbove the Firmament