His magic cancelling only cancels magic. It won't make people trip unless they're relying on magic to move around. Those pages weren't showing him using it at the moment. He was just thinking about using it in the matches.
Are you sure he's the one who made her trip? To me it just looks like he's just talking about whether to use delete or not during the fight and it happened to also show Liche.
It's just a fun idea, put down your nerd glasses. They don't actually go into much depth about the rules of magic, but mana is usually in anything alive, right? But doing that sort of thing is totally in line with the way he thinks about her.
No she's just top heavy, it's a common trope that shortstacks are clumsy because they can't see their feet.
I remember that one, though what I do remember is that is started to get more and more annoying with how the girls basically had the mc’s balls (figuratively and literally) in their hands and they could control what he did and didn’t do. And the mc wouldn’t do anything about it.
Remember, casting fist is faster than rechanting
That's probably why it got cancelled. The last few chapter is so boring.
He's not using his magic in that scene, he was talking about how he'd use it in the tournament to make Reina fall under his control.
