The Curveblade is a Sangheili melee weapon resembling a steel single-bladed energy sword. This weapon was often used as a hunting knife and for personal defense, becoming the standard in those roles before the formation of the Covenant, though it continued to be used thousands of years after.
- Halo: Evolutions - Essential Tales of the Halo Universe
- The Return (First appearance)
- Halo 5: Guardians