*Part 2: The Final Charge*

The battlefield crackled with the residual energy of Megatron's missed shot. The Decepticons caught in the blast lay smoldering, their bodies reduced to charred husks. Optimus Prime, with his resolve now burning brighter than ever, stood tall. The words of his fallen comrades echoed in his mind—*"Until all are one."* It was their legacy that drove him forward. Every death, every sacrifice would not be in vain.

Megatron's optics widened in surprise as Optimus dodged his lethal blast. He hadn't expected Prime to have any fight left. But then again, Optimus was never one to submit easily. Megatron's snarl twisted into a vicious grin. "You're delaying the inevitable, Prime. Your precious Autobots are gone. Cybertron belongs to me."

Optimus didn't answer with words—he answered with action. His faceplate snapped into place, the whirring sound of ancient Cybertronian machinery signaling the final battle between them. His blue optics locked onto Megatron, calculating every step, every angle. His powerful legs pushed him forward, his body a blur of motion as he charged headlong into the Decepticon leader.

Megatron met him head-on, raising his arm to unleash another blast from his fusion cannon. But Optimus was quicker this time. With a deft movement, he sidestepped the attack, closing the distance between them. His energon sword ignited with a bright blue glow as he swung at Megatron's arm, intending to disable the cannon. The blade struck true, slicing through circuits and wires, sending a shower of sparks into the air. Megatron roared in pain as his fusion cannon fizzled out, disabled but not destroyed.

"You fool!" Megatron growled, his free arm transforming into a massive blade. "You should have surrendered when you had the chance!" He swung the blade in a wide arc, aiming to cleave Optimus in two.

Optimus blocked the strike with his own sword, the clash of their weapons sending shockwaves across the battlefield. The force of the impact made the ground tremble, but neither warrior gave an inch. They locked gazes—Optimus, calm and determined, Megatron, furious and desperate.

"You've destroyed too much, Megatron," Optimus said, pushing back against the Decepticon's strength. "This ends now."

Optimus swung again, this time aiming for Megatron's legs. The attack was swift, precise, and it landed. Megatron staggered, his right leg collapsing under the weight of the blow. But even as he fell to one knee, the Decepticon leader refused to submit.

"Never!" Megatron roared, lashing out with his blade. He caught Optimus across the chest, leaving a deep gash in his armor. Sparks flew, and the pain surged through Optimus' systems, but he didn't falter.

"One shall stand..." Optimus gritted through the pain, his voice steady. He raised his energon sword high, the Matrix of Leadership within him glowing brighter than ever. "One shall fall."

With a final burst of strength, Optimus brought his sword down with all the might of Cybertron behind it. The blade pierced through Megatron's chest, right where his spark resided. Megatron gasped, his optics dimming as the blade plunged deeper into his core. The once-proud leader of the Decepticons let out a final, defiant snarl, his voice trembling with rage and disbelief.

"How...?" Megatron choked, his systems failing as his spark flickered. "How could I... lose?"

"You lost because you fight for yourself, Megatron," Optimus said, withdrawing his sword and stepping back. He watched as Megatron collapsed to the ground, the light in his optics fading. "I fight for everyone."

For a moment, there was silence on the battlefield. The remaining Decepticons stood frozen in shock, watching as their leader's body lay motionless. Optimus Prime stood victorious, his battered form still radiating power, though his systems were dangerously close to failing. His every movement was heavy, and he could feel the weight of countless battles pulling him down.

But there was no time to rest. The Decepticon army was still vast, and though their leader had fallen, they were not defeated. Optimus looked across the battlefield, his vision flickering from the strain.

And then, as if on cue, the Matrix of Leadership in his chest glowed even brighter. Optimus could feel its power flowing through him, revitalizing him, giving him the strength to keep fighting. It was not just his strength—it was the strength of all those who had fallen. Their spirits surged through him, their voices whispering in his mind.

"Until all are one."*

Optimus raised his sword, pointing it toward the Decepticon army. His voice boomed across the battlefield, carried by the wind and the spirit of every Autobot who had ever fought for freedom.

"Decepticons, your leader is no more. Cybertron will be free. You have a choice—stand down, or face the same fate."

For a moment, the battlefield was still, the Decepticons uncertain, their ranks wavering. And then, slowly, one by one, they began to retreat. Some fled into the skies, others melted back into the shadows, unwilling to face the wrath of the last standing Prime. They had lost the will to fight.

Optimus Prime watched as the Decepticon forces scattered. His body ached, his systems were on the verge of collapse, but he had won. Cybertron was free.

As the last of the Decepticons disappeared over the horizon, Optimus sheathed his sword and looked up at the darkened sky. The war was over, but the cost had been great. His comrades—his friends—were gone. But their legacy would live on.

Optimus Prime, the last of the Autobots, stood alone on the battlefield, his blue optics scanning the horizon as the first rays of Cybertron's sun pierced the clouds. He spoke softly, a vow to the fallen.

"Until all are one."

*End of Part 2*