The mole-millipede will writhe and spin and curl and then leap forwards to strike again. It is dangerously hard to tell the writhing as a result of being tased from the writhing as a result of being a giant millipede-mole whose movement is wholly unalike to that of any natural thing, but it certainly isn't out of the fight. 

"Hey. Hey! You should use me!" 

"Why."

Diana can do this all day, and she has a lot more combat options for e.g. slamming the darn thing into a wall if the arcanist is fleeing like he really should be.

If not...well, she has good batteries.  Hopefully they'll hold.  Hopefully they're actually doing anything.

Or -

Hi mole-monster!  Do you like high-pressure capsaicin?  Diana hopes not!

"This is a really good sword! And I can blow stuff up!" 

The arcanist is indeed fleeing for his life. The mole-monster is indeed rather put off by the high-pressure capcasicn, which is lingering in the air just a little more than it should. It doesn't take many more punches before it decides it has had enough of this and burrows out through another wall. 

Well, Diana would trend more towards grapples and utilizing warped space-and-therefore-gravity as leverage for throws, but yes, she can punch.  Or more accurately palm strike, what with having taser gloves.

"Ahh, good ol' bear spray.  Works on 95% of gribblies!"

Now where'd that arcanist go?  He probably needs someone's help, regardless of whether it's hers.  She should make sure he ends up getting something suitable.

Grappling a thing with several dozen clawed legs arranged around it's body in a spiral is a complicated matter, but it can be managed. 

The arcanist is upstairs, desperately filling a backpack with his photocopies. 

"Hey.  No harm no foul, okay?  Take your time.  And clean up the mess.  But what I am going to recommend is that you find literally anything other than what you're doing, to, y'know, do, day-to-day, because you are clearly desperately unhappy with your job.  Take a week off or something.  You clearly need one."

"It's not my work that's the problem, it's all those war-mages and spell-hunters, lording their superiority over me because they've been given real combat spells! If I can bring in a new spell, one with real power, they'll have to respect me!"

He hurries with his packing. A lot of stuff is getting left behind. 

"...would they, though?  Like...seriously, would they actually be - socially obliged - to respect you, then."

"... Yes? I'd be a real wizard, then! A real contributor to the college! They'd have to!" 

"...The way spells work sucks, and I don't think you'll be happy even if you get what you're searching for.  You should probably just - take a breath, for a moment.  I know you have no reason to listen to me short of 'I can beat you up' but...dude.  You look like death warmed over.  Seriously, take a fucking break."  And she heads on out.

He doesn't acknowledge her leaving in any particular way. 

The sword tries to make an explosion as she leaves, but only manages "the noise of a gunshot played through your laptop speakers" loud. 

"Dammit, I'm fully bound again. Can you help? You seem like the sort of person who could break the binding!" 

"...I'm not really inclined to do that if I can't be sure that I will not in turn be exploded."

"I'm pretty good at keeping my wielder from getting blown up, that was really annoying, back when I had sorcerers, so I tried to avoid it. And then I got put in a sword! I almost never blow up the sword." 

"I see.  I'm also not generally inclined to blow most other things up."

"Oh that's good, maybe? The binding is pretty clever! I can only be unbound by someone who genuinely thinks it'll be good for the world to do that! Which is why that kid was trying to ritual, he was trying to make it so things only had to be good for him, instead." 

"Well, I kind of don't think it's actually good for the world to unbind a spell that can just explode whatever, whenever...but maybe I can go kaiju hunting sometime.  ...Feel kinda bad for that dude.  He's - really not in a healthy state of mind."

"He seemed fine to me? Was pretty good at writing the proper words." 

"People don't normally become that devoted to showing them all, without something being very wrong."

"Huh. I figured most people wanted to show someone something. You're all so social." 

"I mean, yes, but also, no.  Becoming obsessed with dominance is not a usual human state-of-mind."

"If you say so? Where are we going anyway?"