Always Dark

Lands that observe this Law will always be enshrouded in darkness, and even when a sun shines on them, it doesn't make it any brighter.
Law originates on Midnight-Class planets from StarBound. They orbit different star types, which adds to their danger, but no lights work properly on these planets. Personally, I (Viirin) think it's because violium is only found on Midnight planets, and as darkness-elemental metal, it's probably in the atmosphere.