Wall of ice

Wall of ice, formerly known as Veridon's wall, was an evocation spell that created a thick sheet or dome of ice.

Users
Wall of ice could be cast by sorcerers, wizards, and clerics who commanded the cold or ocean domains.

Effects
The spell created a sheet of ice supported by a sheet of frigid air. As ordinary water ice, it could be melted by intense heat, releasing steam, or broken with sufficient force.

Wall of ice could be cast in two forms: a wall or plane of ice set on the ground or anchored between points, or a dome of ice over a certain location. The former was often used for defensive purposes, usually to block enemy pursuers.

Components
A casting of wall of ice required a small fragment of quartz or another rock crystal.

History
The spell was created by the arcanist Veridon of Netheril, ruler of the enclave of Lathery. He introduced it in 3399 NY (−460 DR) under the name Veridon's wall. It later became known simply as wall of ice.