I'm pretty sure that you'd want to get necessary cards for your deck like Watery Grave, Underground River, some form of aggro defense at all like Last Gasp or Repeal, Psionic Blast to finish the game with, and a couple of others.
I currently own a few watery graves couldnt find them in time to play in the tourney tho... but im definately going to get underground rivers...
this format is entirely doable, but I'm pretty sure I wouldn't bother with a bunch of x/1s and vastly overcosted spells when those x/1s inevitably die.
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The x/1's win the game very fast... trespasser is a 3/1 with shadow and looters have shadow also... also no card in my deck is rediculy overcosted, madness reduces the cost around 2 or 3 mana each card... and the only expensive card in my deck is stronghold but you pretty much win off that...
but i dont want to seem close minded... i just disagree with that statement... i think i will try Psionic blast...