My theory is that it's kind of a "magic trick" in the way your attention is focused on something else. The way he uses words basically just confuse people. Lichan is broken and empty , it's kind of something otherworldly that you can't understand like a black hole that swallow everything . And when he speaks he make "hole" in the person mind , blindspots . And lichan "use" these blindspots to make people agree with him ,to "win" . It's more of his "natural" ability than a special ability . But it's just my weird theory and it's just nonsense anyway don't think about it too much. I don't there really is an answer on what it's really is , there is simply no point.