Your innate magic is flexible.
Benefit(s): You gain a number of additional uses of your once per day racial spell-like abilities equal to the number of such abilities you have. You can expend these additional uses in any combination. Normal duergar spell-like abilities and those granted by duergar racial traits both count for the purpose of this feat.
For example, a normal duergar has two once per day spell-like abilities (enlarge person and invisibility), so taking this feat would grant her two additional uses of her once per day spell-like abilities; each day she can use either two additional uses of enlarge person, two additional uses of invisibility, or one additional use of each.
Special: You can take this feat multiple times. Its effects stack.
Pathfinder Roleplaying Game Monster Codex © 2014, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, Logan Bonner, Jason Bulmahn, Ross Byers, John Compton, Robert N. Emerson, Jonathan H. Keith, Dale C. McCoy, Jr., Mark Moreland, Tom Phillips, Stephen Radney-MacFarland, Sean K Reynolds, Thomas M. Reid, Patrick Renie, Mark Seifter, Tork Shaw, Neil Spicer, Owen K.C. Stephens, and Russ Taylor.