Spirit Daggers are summoned by Nightwolf in a similar manner to his Bow and Arrow and his Tomahawks. He utilizes them in combat as alternate close range weapons with his tomahawks, swapping to them for quick offense while utilizing his tomahawks for heavy hitting attacks.
- They have a similar appearance to Bowie Knives.
- Nightwolf summons them through light in a similar fashion to how Shao Kahn summons his Light Spear in Mortal Kombat (2011).
- Nightwolf uses them in his Chapter in Mortal Kombat 11: Aftermath to escape captivity after he, Fujin and Shang Tsung were captured and taken to Shinnok's Bone Temple.