1: Shax was charging at Tomas, not Fox.

2: Fox summons monsters and objects. He can't do literally anything you feel like making him do, as you've been doing so far.

3: You blocked a six foot+ sword that probably weighs more than fox does, with a much smaller sword, with strength far lesser than what Shax possesses, and even disarmed her and disarmed everyone else... All without anyone being able to so much as react. Basically, I'm calling bullshit on that.