Uncanny Dodge-Barbarian

At 2nd level, a barbarian gains the ability to react to danger before her senses would normally allow her to do so. She cannot be caught flat-footed, nor does she lose her Dex bonus to AC if the attacker is invisible. She still loses her Dexterity bonus to Armor Class if immobilized. A barbarian with this ability can still lose her Dexterity bonus to Armor Class if an opponent successfully uses the feint action against her.

If a barbarian already has uncanny dodge from a different class, she automatically gains improved uncanny dodge instead.

Uncanny Dodge-Barbarian

Eberron inferno813