Awareness
From Compendium of Worldly Lore
Needs review
Source: Kalamar's Player Guide
Description: You are perceptive in combat
Prerequisites: Dodge, DEX 13, Lightning Reflexes
You cannot be the target of a sneak attack from a flanking character. Only an attacker that catches you flat footed (or if you are somehow otherwise unable to apply your Dex bonus to AC) may sneak attack you.