"You presume there actually are centaurs or quadrupeds that are similar to centaurs.  And that I'm a rear-liner too.  My spells are only to make up the lack of actual equipment here besides some minor healing.  I'll be on front, with the spears if there is to be a cavalry attack.  Then I'll bash their heads in with a warhammer that will be formed from this mace...and heal myself if needed.  It's possible after all, that we're not only fighting other slaves, but also each other.  You should  plan for that too."  Despite what little teasing she's done already, it's very easy to tell that she's being completely serious about this, and has already accounted for it in her own plans.