Check out Low-Poly Genshin Impact COOL STEEL SWORD Low-poly 3D model on CGTrader for $2.5. High-quality mesh by Rocketz.
STL (Stereolithography, filesize: 814 KB), OBJ (OBJ, filesize: 1.1 MB), FBX (Autodesk FBX, filesize: 435 KB), BLEND (Blender, filesize: 1.99 MB)