One possible scenario is that Anakin might get inspired by the unique battles and combat strategies depicted in the fanfiction. He could start thinking about how he would handle those situations in his own way, given his skills as a Jedi and later as Darth Vader.
One possible plot could be that Anakin somehow manages to escape the destruction of the Death Star at the last moment. Maybe he uses his strong connection to the Force to find a hidden escape pod or a secret passage. He then has to evade the Empire's search for him while also trying to figure out how to use this second chance to redeem himself further.
Anakin's journey from Jedi to Sith and back again gives him a complex perspective. Other viewers might just see the battles as entertainment, but Anakin would likely see them through the lens of his own struggles with power, loyalty, and redemption. So, when watching the fanfiction, he could be constantly comparing the battles and characters to his own past actions and relationships, which is very different from the average viewer's more detached perspective.
Perhaps Anakin would find the fanfiction to be an interesting diversion from his own experiences. He might see characters in the Death Battle fanfiction with powers similar to his own and compare their uses of power. For example, if there were a character with a lightsaber - like weapon, he'd analyze how they fought compared to his Jedi training. He could also be intrigued by new and strange powers that don't exist in his world.
Some fanfics might explore Anakin's death as a result of his internal struggle. He has always been torn between the light and the dark side. Maybe in the fanfic, the dark side finally consumes him completely, but in that moment of total darkness, he realizes his mistake and sacrifices himself to stop the spread of evil that he has unknowingly helped create. This could be a very poignant and complex way to end his story, showing his journey full circle from a hopeful Jedi to a fallen Sith and back to a redeemed hero in his death.
Padmé would be heartbroken. She loves Anakin deeply. In fanfiction, her reaction could range from inconsolable grief to a determination to avenge his death. She might also blame herself, thinking that if she had been there for him more, he could have been saved.
In some Clone Wars fanfiction, Anakin Skywalker's death might be caused by a betrayal. Maybe a clone trooper, who has been secretly influenced by the dark side or some hidden enemy, turns on him during a crucial battle. This unexpected turn of events catches Anakin off - guard and ultimately leads to his death.
In the novel " Celebrating Years," Fan Xian's mother, Ye Qingmei, was killed by the Qing Emperor, Empress, and Chen Pingping. In the movie, Ye Qingmei was a transmigrator. She came to the temple and took away the sniper rifle, glass, and other items. Then she came to Qing Kingdom and founded the Ye family, the palace treasury, and the Overwatch Council. Because she had helped the Qing Emperor ascend to the throne, she had been feared by him. In the end, she was conspired to be killed by the Qing Emperor, the Empress, and Chen Pingping.
His perspective could become more open - minded. He'd see different interpretations of battles and characters, which might make him question his own assumptions about combat and relationships in his own universe.