Evasion-Ranger

When he reaches 9th level, a ranger can avoid even magical and unusual attacks with great agility. If he makes a successful Reflex saving throw against an attack that normally deals half damage on a successful save, he instead takes no damage. Evasion can be used only if the ranger is wearing light armor, medium armor, or no armor. A helpless ranger does not gain the benefit of evasion.

Evasion-Ranger

Eberron inferno813