You gain the service of loyal undead followers.
Prerequisites: Character level 6th, nongood alignment, Knowledge (religion) 1 rank.
Benefit: You attract followers and a cohort as if you had taken the Leadership feat. Your leadership score is treated as 2 higher than it otherwise would be for the purposes of attracting undead followers and treated as 4 lower than it otherwise would be for the purposes of attracting living followers. If you choose to attract an undead cohort rather than a living cohort, you can attract an undead cohort with a maximum effective character level equal to two less than your ECL.
Special: Like the standard Leadership feat, you must check with your DM before selecting this feat, and work with your DM to determine an appropriate cohort and followers for your character. See the Undead Cohorts and Followers section (Libris Mortis, page 32) for more information on choosing an undead creature as a cohort or follower.
Source: Libris Mortis, page 31.