Not to mention he was right, and they knew it deep down in their spirits. Even if they were deadly worried about him, they had to do as he said.
Gathering ten thousand masters wasn't a problem. The guild members who followed them here were in the hundreds of thousands, a number that was enough to form an army on their own. The only drawback in this was their lack of enough power to contend against the enemies here.
As they relayed the news, the guild members showed another remarkable feature to all the high-end masters here; discipline and order!
Any other army of masters would take a long time to arrange themselves into the teams William asked for. But in mere minutes, teams got formed, and they stood in their places as he asked.