[quote=@MelonHead]
Khan you know you ran right into his Earth Circle right? I go to all that trouble of trying to throw you into it and you just run right into it for me.

Metz' reaction sums it up.
[/quote]

Of course he can see magic circles after all. Why did you think he dropped his sword in the first place? Well, one of the many reasons. 

And just so you know, it absorbed the mana before it became stone. Thus leaving no mana in the circle to activate it.