Necromancy [Cold]
Level: Cleric 2, Druid 2, Sorcerer 3, Wizard 3
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Area: 20-ft. square of snow/level
Duration: 1 round/level
Saving Throw: Fortitude negates
Spell Resistance: Yes
You must cast this spell on a snow field. You corrupt an area of fallen snow, imbuing it with negative energy. Each round, a creature in contact with blood snow must succeed on a Fortitude save or take 1d2 points of Constitution drain. In addition, anyone failing a saving throw is nauseated for the duration of the spell.
Source: Frostburn, page 89.