Compulsion Mastery (Item Mastery)Source Weapon Master's Handbook pg. 26
You can gain influence over the minds of others using enchantment magic items.
Prerequisites: Use Magic Device 3 ranks, base Fortitude save bonus +6.
Benefit: You can cast suggestion as per the spell by using an item that has an enchantment spell of 3rd level or higher in its construction requirements. You can use this feat once per day, plus an additional time per day at base Fortitude save bonus +9 and +12.