From DDO wiki
You can wriggle free from magical effects that would otherwise control or compel you. You gain a second saving throw versus enchantments.
- Barbarian - Occult Slayer enhancements - 4th core
- Bard - Swashbuckler enhancements - 5th core
- A Rogue may choose this feat as one of his optional abilities at level 10, 13, 16, or 19.