Urza's rage isn't necessiary, he's playing the rage's older superior brother, the hammer. In all seriousness, hammer is about 1000000000000000 times better then urza's rage. I suppose you know that gizmo, so I won't waste time explaining it. Here's what i think of the deck:
-3 mages contest (I don't really think this is necessiary, overkill really. When they play a card that you need to counter, I think you'll find you'll be within one or two hammers of winning)
-1 lightening blast (why only one? It seems really random)
+4 baluvian horde
No joke, I think we'll see the start of the return of the horde. 5/5 for four mana is tough to beat these days. Even kills blastoderm.
On another note, my team spent a good deal of the weekend brainstorming for the new type two season. Everyone seemed to agree that ponza will be a surperior deck to RDW2K. Other deck types that appeared: tanglestompy, fat stompy, rebel (duh), u/w rising waters (nasty deck with kismet), g/w, white control, maro/blastogeddon (old decktype coming back to dominate?), r/g rush, dark ponza, overabundance burn, u/g. I would include the decklists, but a lot of them were not my design. I will probably post up some of my decks when i finish tuning them.