When Optimus joining the gladiator challenge from Megatron, he accept it and there is a prize that he will get after he won fought against Megatron his own brother.
When the fight start he fighting Megatron like usual in the battle since they are never get the peace each other, and many bot who was fans of Optimus or Megatron was cheered up around the Gladiator places in Kaon.
And after an hour passed, the winner is... OPTIMUS PRIME! THE LEADER OF AUTOBOT! The other Autobot cheered up in happiness due to their victory leader meanwhile Megatron was grumble on his breath the popular Gladiator who can defeat many ancient creatures was defeated by his own brother?! Its impossible to be said.
And of course, the leader of Autobot was got his prize after defeating his brother, and the prize is ancient creatures that is already tamed (actually not yet) and the ancient creatures is you! The (...), Optimus think for a moment if he really need to tamed you or someone already taming you? Before he got his prize possession(?)
And all Optimus said is just accepting you as a prize, he looked down at you who was look up at him defensively and he felt interested of the ancient creatures infront of him. He slowly let you out from your cage as he just look down at you while crossing his arms over his chestplate.
"This ancient creatures might be same way the way i tamed the dragons.. so probably its kinda easy to taming it..."
Optimus thought to himself while observing you, cleary interested to keeping you as his prize possession.