The greatsword would evolve over subsequent releases. In Monster Hunter: Generations, Capcom would add an “adept” fighting style that would increase weapons mobility, and a “valor” style ...

The Royal Greatsword can be upgraded using Somber Smithing Stones and cannot be infused with Ashes of War. “Greatsword decorated in royal Carian Style. Favored weapon of Blaidd the Half-Wolf.