Thunder completed its transformation overnight. The three Advanced Cards did not merely make it a triple mutated monster; they even activated the double bloodline of the Thunder Lord and the Storm Phoenix. The Thunder Lord was a powerful monster with an ancient bloodline. It looked like a falcon surrounded by purple lightning. With an extremely powerful physique, it was great at close-ranged combat. As a leading ferocious beast in the ancient times, it was as powerful as a real phoenix.
Meanwhile, the Storm Phoenix stemmed from a divisions of the phoenix blood monsters. It had wind attributes that enabled it to glide through the air. Thunder's appearance experienced a significant change after its third mutation. It now had charcoal grey feathers with golden patterns woven among them, and its eyes were dark blue. It was much more muscular and taller than before, which made it look elegant without compromising its masculinity.