SCRATCH SCRATCH
Alex used part of his sword to carve away the land underneath him. There were 5 formation flags stuck on 5 different locations next to him.
With the formation flags, the formation would work just fine. However, Alex wasn't used to making formations, so he wanted to make sure the flags were in the correct place by carving away a physical path and see how straight his lines were.
As expected, the resulting path was very crooked. The formation wasn't as symmetric as he wanted to make it. So, once he was done. He removed the formation flags from their original location and replaced them on the ground a little left of it.
He did the same with 2 other flags and once he was done, he started carving away the ground once more. All the while, he had his Qi on the flags, and would something happen, he would immediately pull back the flags towards himself.