Concerning the Orzhov warrior deck, I think Blood-chin Rager is a good card for that one since it makes your creatures harder to block. I feel Secure the Wastes might also be good, it's a nice little token producer that works well with Chief of the Edge. Dragon Hunter gives you another Savannah Lion, plus a good blocker for most dragons. I even think Foul-Tongue Shriek could be nice to give the deck reach. I'm still not sure it's all that competitive, but I think it got a lot of nice toys and should be solid post rotation.
(I'd link the card images but I don't know how)