Well that explains Julius' peculiar decision-making, but what would he be referring to with "not magic"?
Not sure- they should explain what it means in next chapters. Langris, resentment and jealousy towards Finral might have made him an easy target for manipulation. Magic Emp is trying to use Asta to remove Langril's control magic if any I suppose, since he used time previously too. If Asta's sword touches Langris, part of his problems are solved. He is smart troll with some good battles tactics - using this tournament to flush out traitors is a good move but I wonder if Liar will be caught yet.
If Langris is an "unconscious" traitor" then the question which one of them is Liar remains open. William Vangeance doesn't seem to be around but there is that Zax/Xerx impersonator who along with Lil inserted himself in the tournament. So I wonder if Liar is changing who he is going to play or is the same captain all the time.
Also - Would like to know why Magic Emperor didn't say anything when Zax suddenly popped up and declared himself to be a magic knight using a vice captain Lunger's name. Shouldn't everyone among senior knights know he is a fake?