The pink aura forming around Arthur suddenly changes to a royal purple, compressing down to a single point centered on his muzzle. As Tesla floats a bit closer to provide Kotoha with a handhold to leverage herself up, she directs her Persona to cast Tarukaja on the Lucario.

As Arthur receives the stat booster, he opens his mouth and barks, causing the small point of aura in front of him to explode into a raging torrent that slams into the Ongyo-ki's knee, staggering it and giving the pair time to get out of range.