One possible fanfiction could be about Sentinel Prime and Optimus Prime having to work together to save Cybertron from a new, powerful enemy. They might start off with some differences in their approaches but gradually learn to combine their strengths.
Optimus Prime could fit in as a powerful ally. He would be like a super - powered being in the RWBY world. His presence could shake up the power balance. Maybe he arrives through a portal and immediately starts helping the RWBY teams fight the Grimm. He could be seen as a symbol of hope, much like the Huntsmen and Huntresses are in RWBY.
Baby Optimus Prime's character can be developed by exploring his relationships. If he has a mentor figure among the Autobots, his interactions with that character can shape him. He might look up to this mentor and try to imitate their good qualities. His relationship with other baby Transformers or younglings can also be important. He could learn about sharing, cooperation, and friendship through these relationships. Additionally, his discovery of his own strength, both physical and mental, can be a key part of his development. For instance, when he first realizes he can lift a small object that others thought was too heavy for him, it gives him confidence.
The other characters in the Highschool DxD world would have a wide range of reactions. The angels might see Optimus as an unknown factor and be a bit suspicious. The fallen angels might try to manipulate the situation to their advantage. And the normal human students would be terrified at first. But as the story unfolds and they see Optimus Prime's noble actions, they could start to look up to him as a hero, much like how the Autobots are seen as heroes in their own universe.
Fanfiction about Baby Optimus Prime might also explore his emotional side. As a baby, he would be more vulnerable and have a wider range of emotions. He could get scared during battles, but also be extremely curious about the world around him. Writers could delve into how the other Autobots help him deal with these emotions, like Ratchet being like a father figure, comforting him when he's afraid and guiding him as he grows.
Optimus Prime is shown as extremely powerful in comics. His strength lies not just in his physical might but also in his leadership and determination. He can overcome seemingly impossible odds and lead his team to victory.
Optimus Prime is extremely powerful in the comics. His strength is shown through his ability to battle against powerful Decepticons and protect Earth. He has advanced weaponry and a never-give-up attitude that makes him a formidable character.
Optimus Prime is usually a very popular character in these crossovers. Whether it's the version from Transformers Prime with his more stoic and wise demeanor or the Bayverse Optimus who has his own charm with his action - packed movie presence.