Cryonis

Cryonis is a Rune in.

Location and Uses
The Cryonis Rune is obtained in the Keh Namut Shrine at the Great Plateau. The Cryonis Rune allows Link to spontaneously create pillars of ice from the surface of any body of water, including waterfalls. Link can create up to three pillars of ice at once; raising a fourth one breaks the first. In addition to creating pillars of ice, Cryonis can also be used to break these pillars as well. After using the Cryonis Rune to create a block, a timer gauge will appear which must fully restore before Link can use Cryonis again.

The ice pillars created have various uses, such as creating stepping stones, getting leverage and making obstacles. It is also used to manipulate certain surroundings, such as opening a gate by raising a pillar beneath it.

Etymology
The word cryonis comes from the Greek cryo or cryos (κρύο) which means "icy cold."