Hikari saw the Black Dragon claw appear from a portal and her body shook. Previously, Draco had only released the aura of a Black Dragon as well as the Source Origin, but so far, he had never taken the full form of one in her presence.
Hikari hadn't been around when Draco fought the Dark Knight, so she hadn't had the unique pleasure of meeting a Black Dragon in the flesh yet. Just seeing the limb that was coated by that Destruction Energy made her heart thump.
Draco himself had used about 75% of his Bloodline Energy to summon that claw. It wasn't because he had gained some skill with the summon, but rather that his Bloodline Purity had risen.
He had gone from 95% to 99%, which sounded small, but it was actually a very big deal. If Draco could learn how to maximize his usage, as well as all the relevant techniques, he would remain undefeated in Boundless and much harder to kill in the real world.