Superior Sight (Darkvision)

Your senses are peerless. You gain a +2 circumstance bonus to Perception checks, and you gain low-light vision. If you already have low-light vision, gain darkvision instead.

Furthermore, when you target an enemy, you automatically succeed at the flat check if that enemy is Concealed, Hidden, or Undetected.

Note: this version of the feat grants darkvision automatically.