Sword of Night and Flame
Clayman's Harpoon (use Ashes of War to scale Holy) Crystal Knife nad Ivory Sickle can be infused, too... Erdsteel Dagger can be infused with INT Ashes
Carian Slicer/Greatsword/Piercer or Gavel of Haima with a staff... Catch Flame with Golden oRder Seal
Night Blast Art of War??