Before buying a Xiphos sword, consider authenticity, blade material, and craftsmanship. A true Xiphos features a double-edged, leaf-shaped blade ideal for thrusting and cutting. Look for high-carbon or stainless steel for durability and edge retention. Check the handle design for comfort and historical accuracy. Whether for display, reenactment, or collection, ensure the sword reflects traditional Greek styling. Also, verify the reputation of the seller and whether the sword is functional, decorative, or battle-ready based on your intended use.