Summon Tyr–Storm

''You summon a Tyr–storm. Ominous cerulean clouds fill the sky. Hail, lightning, hurricane winds, slashing rain, acidic vapors, and furious thunder rock the area.''

The spell draws a Tyr–storm into an area designated by you. The storm is typical of those spun off from the Cerulean Storm, lasting for 2d10 minutes and inflicting 2d8 points of damage per round. A Tyr–storm is a violent tempest and can't be used to bring water. This spell does not imbue you with the ability to control the Tyr–storm.