Your summoned minions are infused with the power of the moon.
Prerequisites: Spell Focus (conjuration), able to cast summon nature's ally.
Benefit: Creatures you summon shed light as a light spell. They are immune to confusion and sleep effects, and their natural weapons are treated as silver for the purposes of overcoming damage reduction.
Essentia: This Light effect act as a Spell of level 1 + 2 / Essentia for dispelling purpose or when trying to negate magical darkness