As Mega Lucario, its appearance undergoes a few noticeable changes. Its body gains rigid, black streaks on its arms, legs and face which are created by the energy generated by Mega Evolution intermingling with its Aura, the latter of which is significantly heightened. The buff-colored fur on its slender torso becomes shaggier and envelopes its tail, and its Aura-sensing appendages grow considerably longer. Lucario also gains additional spikes on its torso, forepaws, and hind paws. Lastly, its paws and Aura-sensing appendages are now colored crimson. Although Mega Lucario possesses significantly greater offense and speed, the energy of Mega Evolution also brings about a drastic change to its mentality, often causing it to face opponents with an aggressive, menacing fighting style.