Eternium

Eternium is a mythical substance of near legendary status. It was said to have powered to Azant civilization before its collapse before the Eternal Darkness came. It is widely believed that virtually all eternium brought by human refugee was exhausted long ago, but the occasional eternium battery cache still appear, typically leading to bidding or outright physical war over its ownership.

Eternium in its natural state is said to be similar in shape to black crystal which when directly looked at cause the onlooker to behold visions of infinity and possibility.