Hypothermia (3.5e Feat)
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 Hypothermia [Class, Frost Knight]
The debilitating effects of your aurora are intensified.
Benefit: All enemies caught in your aurora are now treated as exhausted. Enemies normally immune to exhaustion (such as undead) are instead slowed for as long as they are in the area of effect.
Normal: Enemies caught in the effect of the aurora are fatigued, and those immune to fatigue are unaffected.