Your attempts to bind or call outsiders are highly potent.
Benefit(s): Choose a subtype of outsider, such as angel or elemental. When using the planar ally or planar binding spells, you can call 2 additional Hit Dice of outsiders with the chosen subtype. You also gain an additional benefit depending on what spell you are casting.
Special: You can gain this feat multiple times. Its effects do not stack. Each time you take the feat, it applies to a different subtype of outsider.
Pathfinder Player Companion: Monster Summoner’s Handbook © 2015, Paizo Inc.; Authors: Alexander Augunas, Tyler Beck, Anthony Li, Luis Loza, David N. Ross, Owen K.C. Stephens, and Linda Zayas-Palmer.