Using our new ninja were mammoth skills, karate chop anything and everything.
Whoo, boy.  That's not going to be good for her sense of well-being.  Poor Misty...
4.  Reg is now a nightcreature but won't know it for a good while.  Gets up and looks around.
(Ninja) Weremammoth.  We don't ask how a weremammoth got into those tunnels, just as we don't ask how it can be a ninja.  It simply is.
4.  Reg is now a nightcreature but won't know it for a good while.  Gets up and looks around.
+1
It's the scratch on her arm. Some werebeast bit her.
Let's vote what kind of werebeast bit her!
Poll, poll, poll!
Wait, weres can be almost anything, right?
Reg is now a Werechicken.
Seriously though, let's change her into a Weremonitor or similar. Kobolds look like humanoid lizards, right?

Oh, for the love of Stonetusk, it's not a were-anything!  
You thought it was a particularly tough kobold at first, 
but now that it's flung you through the air like a rag doll you're starting to think it might actually be a night troll-
> Be distracted by the fact that you don't have your sword.