I can think of a solid reason why, but I don't think it would be appropriate to say; it would probably count as meta information. (I hope my last post didn't, either, but seeing as it concerned cards that are banned this time, I figured it would be okay. I think I got that tournament confused with a different one anyways, since in the first plants vs zombies I should, in theory, have been using 5 life creatures in that deck :p)