Creeping Cold, Greater(Masters of the Wild: A Guidebook to Barbarians, Druids, and Rangers)
Level: Druid 7, Shugenja 7 (Water),
Duration: See text
This spell is the same as creeping cold, but it adds a fourth round to the duration, during which it deals 4d6 points of damage, if the caster is at least 15th level, it adds a fifth round at 5d6 points of damage.
If the caster is at least 20th level, it adds a sixth round at 6d6 points of damage.