
Frost's Ice Daggers.
The Ice Daggers are two daggers made out of ice and are held similarly to Mileena's/Li Mei's Sai. They are originally used by Frost in Mortal Kombat: Deadly Alliance, Mortal Kombat: Unchained, and Mortal Kombat: Armageddon.
Overview
The daggers are created by Frost's ability to control the ice element. Due to the fact her power over ice is inferior to Sub-Zero's, the daggers are the full extent of her ability to form solid objects, while Sub-Zero is capable of creating larger objects such as a sword.
In Mortal Kombat X as part of his Cryomancer Variation, Kuai Liang can form ice daggers alongside an array of other ice weapons Sub-Zero's daggers also appear smaller and less serrated than Frost's. He also wields them during his guest appearance in Injustice 2.
In Mortal Kombat Mobile, are once again used by Sub-Zero in his Cryomancer Card. They later appear as an Equipment Card as part of the Lin Kuei Tower.
Bi-Han uses them in Mortal Kombat 1's Story Mode, but not during gameplay.