Type: Special
Source: Dragon #305
Having once forced your superior will on the mind of another, you find it trivially easy to resume your grip on that creature's emotions and behavior.
Prerequisite: Cha 15+, Spell Focus (Enchantment), Yuan-ti
Benefit: When you use any of your mind-affecting spells or spell-like abilities, the save DC increases by +2 if you have ever successfully used any such ability on that target before.