There are many steps to building a character in Honkai: Star Rail, and one of the most important steps is relic farming. Players usually start searching for good relics after their characters are at max level because it's by far the most time-consuming. Planar Ornaments are relic sets that can only be found as rewards in Simulated Universe. Unlike relic sets from Caverns of Corrosion, there are only two pieces in planar ornament sets.