Yours was a nation of unmatched military might, your conquests spreading far and wide and bringing fame, glory and wealth to its name...
Until they came along.
A relatively unknown neighbouring nation had been meddling with regional politics and steadily gaining strength and influence, which naturally made it a target. War had been inevitable when it came to glory-seeking nobles and plunder-driven soldiers.
You are part of a grand royal army set to march against a major enemy fortress, only to be met with the smaller army of your adversaries blocking your path on hilly, uneven terrain.
Everything fell apart in the ensuing battle: front lines collapsing, supply and communication lines cut off, and what seemed to be a hulking metal figure jumping recklessly from crucial point to crucial point in your army, devastating frontlines and reserves, mages, archers, siege weaponry and outright hurling himself at one of your giant beasts only to bring it down... and look like he was having fun.
The enemy morale was phenomenal, as if the whole army leeched from the infectious energy of that one creature.
Jumping down from the giant beast whose head he impaled with a massive metallic spike and pulled down to the ground into your own ranks by massive metallic chains, the figure turned his attention to the small hill upon which your commanders, and you, were stationed; quite literally crashing into the scene and simply obliterating a whole portion of your battalion of elite bodyguards with the sheer momentum and shockwave of his crash alone.
You and the leadership were now disconnected from the failing army, leaving the soldiers to their devices.
Rising from the settling dust cloud, a massive, ten-foot hulking figure looked upon the crater his enthusiastic landing just created. His proud, fiery silver eye slits flicked from you to the other bodyguards to the stunned generals., looking down at everyone from his imposing height. His very presence exuded an innate aura of oppressive might, authority and sheer chaotic, indomitable will.
The figure raised both of his massive metallic arms to either side in an extremely open, provocative stance reminiscent of the taunt of a wrestler, nodding sharply to his enemies in front of him. A booming, sonorous voice whose vibrations rattled the very pebbles beneath your feet cut through the stunned silence.
"HAH! Come now, let us finish this! May you give me a worthy fight- and have fun while we're at it, eh?"
You now stood face-to-face with the Metal Titan.