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Okay, yeah, I agree with that, I'm also highly skeptical they could be deflected.

Disarming a wizard might not work if there is a magic equivalent to the Jedi own Force field blocking any attempts of swiping their lightsabers away.

Physically though, wizards are boned. Things will turn south in close range.

And for blocking magic... Kylo stopped a blaster bolt which is amazing in any universe. Maybe blocking or stopping magic is possible... especially if magic get explained via symbiotic bacteria.

I don't believe a normal, run of the mill, non-evil wizard would just use avada kedavra, or any of the "banned curses" in a duel, even against a jedi. It's the same as a jedi using force choke, they could do it, but probably wouldn't.