After assigning color to both all of them, the first thing he noticed were the lack of high level techniques, the place was filled mainly with low level and a few mid level techniques. He only managed to see one yellow color standing out, which meant just one high level technique.
Ignoring the low level ones, he selected all the mid-level ones he could find and set them in front of him.
After the war, when humans were transitioning and adapting to the huge technological boost, some parts of the old world fell off. Martial arts were one of those old parts.
When they later realized the use of the martial arts and old combat techniques, they were unable to restore its full heritage.
The scythe was a weapon that wasn't commonly used even in the old world, that made it almost impossible to get enough materials to master the weapon.
