Steel Pose (3.5e Maneuver)
From D&D Wiki
Level: Iron Fist 1
Description: The Stance grant you a +2 Enhancement Bonus to Natural Armor (or just a bonus Natural Armor if you have none) and a Damage Reduction of 1/-. You may also take a 10 instead of rolling a save against Bull Rushing or falling prone (or similar effect) for any reason.
You take a pose protecting you from harm; As an iron man you stand still even before the mightiest blow.