Deathstroke's original name had actually been Terminator. Since it overlapped with those time-traveling robots, the editors changed it to Deathstroke to avoid confusing readers.
That proved to be the right call. In his previous life, whenever Su Ming mentioned Terminator, people's first reaction was Schwarzenegger's robot. Very few would think of it as Deathstroke's original codename.
Putting that aside, the basic plot of Terminator was essentially about a blacksmith from the future trying to travel back in time to mend a broken pot in history.
But what happened in the end? Did the future truly develop as humanity had hoped?
No. Generations of Terminators kept appearing, shattering the original Timeline into fragments. The future was still a complete mess, with ever newer and greater troubles constantly emerging.
As the old saying in China went, press down the gourd and the ladle pops up. Problems would always arise.
Before Su Ming transmigrated, when he watched Terminator: Genesis and saw John Connor turn into a machine, he was completely dumbfounded. The future along the Timeline had become a runaway Mustang. What the hell was all that supposed to be?
That was why Su Ming, as the Sorcerer Supreme, rarely tampered with the historical Timeline. Changing even the slightest thing could very well trigger a chain of Butterfly Effects, perhaps even the kind that could neither be predicted nor estimated.
Were there any examples of successfully going back to change history?
There were. The X-Men's Days of Future Past, for example, had been a fairly decent operation. Though it had not changed things thoroughly enough, and the X-Men were still all dead by the time of Old Man Logan, they had at least lived a few more decades, hadn't they?
In any case, whenever Su Ming wanted to change something, he generally preferred