The Cryonis Rune can be used to create up to three frozen pillars at a time. These pillars can only be created where there is existing water, and cannot be made out of nothing. Pillars can be created vertically or horizontally, depending on how the water is flowing. If Link creates a fourth pillar while three pillars already exist, the first pillar created (in chronological order) will disappear.
Link is able to climb these pillars, allowing him to reach new areas that he could not before. They can also be used as block for stopping doors that open and close rapidly, as well as raising gates that could not otherwise be opened. Finally, Cryonis will allow Link to raise certain chests and objects that are floating on top of the water.
The Cryonis ability's power is not limited to ice objects that Link has created; it can also be used to destroy ice created by enemies. This is particularly useful in the fight against the Divine Beast Vah Ruta.