In the past, he might find an ally in an unexpected character like a young and inexperienced ninja who later becomes a great shinobi. This ninja could be impressed by Shikadai's knowledge and skills from the future and decide to team up with him. Together, they could face various threats and challenges.
His best friend, Boruto, could potentially be an ally. Even if Boruto doesn't physically travel with him, Shikadai could remember Boruto's advice and use it during his adventures. Boruto's positive and adventurous attitude might inspire Shikadai in difficult situations.
Deidara could be an ally. Since they were partners in the Akatsuki, Deidara might follow Sasori through time, especially if he thought there were new art - worthy explosions to be made in different time periods. Also, Konan could be an ally. Her paper - based abilities and calm demeanor would be useful in different time - travel situations. She could help Sasori blend in or gather information.
An unexpected ally could be Darth Maul. If Ahsoka travels to a time when Maul is on the run or in a situation where their goals align briefly, they could team up. Maul has a lot of knowledge about the Sith and the dark side that could be useful to Ahsoka.
Archer could be an unexpected but great ally. Given his own complex relationship with Shirou and his knowledge of different futures, he could provide insights and strategic advice. He might even help Shirou train to become stronger in the face of new and unknown threats during their time - traveling escapades.
Well, in his time travels, Rock could encounter other time - displaced robots. These robots, who are also out of their normal time frames, could become his allies. They might have different perspectives on the Mega Man universe and could offer different strategies. Additionally, there could be some hidden characters or entities in the Mega Man lore that only show up during time travel events and become Rock's allies. For example, a wise old robot that has been observing the timeline from the shadows and decides to help Rock.
Well, if she travels back to the past of the Hidden Leaf Village, Rock Lee could be one of her allies. Since they are from the same village and are comrades, Lee would be likely to support her and help her with any physical challenges they might face. Also, Guy Sensei could be another ally. His experience and unique ninja style could be very useful in different situations.
In a time - travel scenario to the Clone Wars, Anakin could be a natural ally. He and Ahsoka have a strong bond, and he would likely believe her if she told him about time travel. Together, they could face any challenges.
Luke Skywalker could be an ally. As a powerful Jedi and her uncle, he would have the knowledge and skills to help her navigate the dangers of time travel. He could also offer guidance on how to use the Force in different time periods.
Koriand'r, her mother, could also be an ally. Her alien powers and knowledge of different cultures and technologies across the universe could come in handy. She might be able to use her powers to manipulate energy in ways that help with the time travel process or protect Mar'i in a dangerous time period.
In a time - travel scenario, Arya could find allies in some unexpected places. For instance, she might team up with characters from different eras. One potential ally could be a powerful sorcerer from the past who has the ability to manipulate time as well. They could help Arya understand the rules of time travel better. Another could be a long - forgotten warrior who has skills similar to Arya's. They would join forces to face common enemies in different time periods.
Sakura could be a great companion. Since they are friends and both have medical and combat abilities, they could support each other during the time - travel adventures. Sakura's brute strength combined with Ino's mind - related jutsu would make a formidable team.