Sigma's tactic is quite simple. He first creates a large moon using the Yin Release. He will then create a large forest contain Once that is done, Sigma uses his imagination, to make night fall using his Yin Release. Though his night fall is not normal night, it is actually pitch dark, that sends vibrations through their body attempting to leave them in a paralyzed stated. The darkness is so dense that you'll have to be nocturnal in order to maneuver around, a feat Sigma has gained.