"I can't raise him yet." Leon muttered to himself when he failed to raise Onyx's soul and turn him into a summon. Instead, he only collected the soul and added it to the collection that he already possessed before turning around to see that Artox had already rushed to unshackle his son from his binds.
The young Diamond Pangolin was bruised, battered, and deprived of mana. His lifeforce was so weak that it was comparable to a flickering candle flame in the wind. The young Diamond Pangolin laid prone on the ground as Artox curled around him, infusing him with energy and a tiny bit of high value lifeforce from his own body.
Leon saw this and sent over a few of his Undead Priests to assist with healing. The young heir was only C rank, so healing him would not be a problem as long as it was gradual and deliberate.