Iron Will
From Compendium of Worldly Lore
Needs review
Source: Player's Handbook
Description: +2 on Will Saves
Prerequisites:
Required for: Bonded Armor, Shield, or Weapon, Bonded Ring, Rod, Staff, or Wand, Great Resistance, Overcome Weakness, Remain Conscious, Suppress Weakness, Unnatural Will
You have a stronger will than normal. You get a +2 bonus on all Will saving throws. You can take this feat multiple times.