Nah, mon… How about something like this:
Well, there’s still Aggro Hunter, though, but…
Brann — yes, perhaps, but what’s wrong with Rainbow DK? It’s decent (about 50-50, perhaps) against, ironically, Aggro DH, Odyn Warrior, but weak against so much stuff: singleton Warrior (!), Wheel Warlock, even Sif Mage etc.
Exactly my sentiment (for example: Anyone tired of third turn 6/5's - #17 by SparkyElf-2852 , Returning to Standard now? - #21 by SparkyElf-2852).
Tough to say: if they nerf the weapon, you might be out of luck.
That deck does have some ‘building blocks’, such as The Primus, Helya, Pit Boss Reska, for more competitive DK decks at the moment, so you might consider saving up your resources in order to build a better DK deck — provided it’d be ‘playable’.