Ace's memories about the past was still vivid.
After he activated the Pathfinder, or the system used by the Cube of Paradox to connect to him, he was given six choices for the path he has to take…
Apparently, if he did not select his path quickly, he might lose his connection to the Pathfinder and be unable to use it at all… It was something that he realized later after he got the Cube of Paradox completely.
After all, the Pathfinder was just a part of the Cube that helped him survive the tragedy, it needed its purpose fulfilled to stay online…
The first option was the Combat Magician's Path in the list after the Pathfinder analyzed the world environment.
It was a good choice if he wanted to become really strong and probably rule this world with force. He read its description and realized that he was right…