Giant Wasp Queen.
"With this concentration, I should be able to break their defenses," Ossa thought, his ulna and radius emitting a black eerie light.
Crack!! A wasp hit his vertebral column, breaking it in two.
In response, Ossa quickly turned his upper body before his vertebral column could reattach, stabbing into the compound eyes of the wasp that had just bitten him.
The blackened ulna hit the creature's eyes, creating a dent in it. "If only it was sharpened," he thought, delivering another blow to a wasp that had gotten too close for comfort.
Noticing the ineffectiveness of his attack, he muttered "Sword echo," his blackened ulna and radius humming as they vibrated at an incredible speed.
Crack!! Crack!! He stabbed at the abdomen of one of the wasps, his improvised weapon breaking the hard exoskeleton of the wasp.