The combined Shard formed when Sazed took up both Preservation and Ruin at the end of the Hero of Ages. As Harmony, Sazed remade Scadrial into a more hospitable world and serves as its god. However, the opposing Intents of Preservation (maintaining the status quo) and Ruin (entropy and change) create internal conflict, limiting Harmony's ability to act. By the era of Mistborn Era 2, Harmony struggles with a new threat and the fundamental contradiction of his dual nature.