Mobile Defense
From Compendium of Worldly Lore
Needs review
Source: Epic Level Handbook
Description: You can adjust your position while maintaining a defensive stance.
Prerequisites: Epic Level, Mobility, Spring Attack, DEX 15, Defensive Stance 5/day
While in a defensive stance, you may take one 5-foot adjustment each round without losing the benefits the stance.
Normal
Without this feat, you can't move while in a defensive stance.