[Comartemis]

That's a completely different case. There is canon evidence that Hayate does--or at least should--have at least passable melee skills since she's copied the spells of Nanoha, Fate, and the Wolkenritter as well as countless other mages the Wolks drained during their rampage in A's. All she has to do to round herself out is take some basic training with Signum or Vita every now and then to get the basics of actual melee combat down and her spell list--assuming she's practicing with a well-rounded spell list like she most likely will be in Comacanon--should go a great distance to doing the rest.

But Dizzy having Orochi blood? Oh come on, that's just lame, not to mention patently ridiculous.