Improved Keen SensesModifier
Your senses are especially keen in the utter low-light.
Prerequisite: Low-light Vision x2.
Benefit: Your low-light vision increase to x3 and your bonus to Perception increase from +2 to +4
Essentia: The Bonus increase by +1 / Essentia and your Low-light multiplier increase by x1 per 3 Essentia