"I wonder why I was so cautious…" Leon said and then sighed while Shadow was draining the mana of the darkness.
The shadowy figure knew that he could destroy things using the power he obtained by killing one of Shadow's fragments. Still, he didn't know that the spirits could grow stronger or even recover their ally's mana by absorbing the elements. Although it wasn't that efficient since the shadowy figure was stronger than Leon, Shadow still could absorb a part of his power, as long as Leon grants his enough mana to balance things. For example, at his current level, Shadow could only eat dark magic-related spells that didn't cost more than one hundred thousand points of mana. Darkness Execution used six times more than that, but just like any other spell, Leon could temporarily make his spirits stronger as long as he increases the mana he uses to keep them in them summoned.