The immense energy contained within the Key Stone and Mega Stone erupted wildly from the two stones...
The Key Stone released several agile yellow chains of light first. The light seemed alive, like dancing ribbons swaying lightly through the air.
Not to be outdone, the Mega Stone emitted several deep blue chains of light. The instant the two chains collided, sparks flew everywhere like brilliant fireworks blooming in the night sky.
The chains of light fused and intertwined, like a mysterious bond that tightly connected Yu Hai and Lucario.
Rich, multicolored energy instantly enveloped Lucario's entire body. Lucario felt a powerful force surging through it, and as that energy flowed, its body began to change.
It keenly noticed black-and-red stripes continuously emerging across its body, like mysterious runes flashing with an eerie glow. The fur behind its head grew increasingly thick, like burning flames drifting gently in the wind.
Its hands and feet gradually turned a vivid red, as if dyed by scorching magma. Like burning flames, they contained even greater explosive power. The iron spikes on its paws and the backs of its hands grew more numerous and larger, sharp and keen, glinting coldly in the firelight.
Lucario's outline became more slender and agile, and a formidable aura radiated from its entire body. It tried moving its body and felt strength unlike anything it had ever known.
Amid the continuously surging Aura energy, it appeared before everyone in an entirely new form.
"Lucario, Lucario." Lucario excitedly examined itself from head to toe, its eyes full of delight. It had fulfilled a long-held dream. The members of its kind it had seen in the villa had looked like this after Mega Evolution, and now it had finally become like them too.
Yu Hai looked at the Mega Lucario before him.