So in response from your general post about deck prices, the REALLY expensive decks are generally going to be commander, or standard. Standard has the least amount of legal cards, so the a availability of strong cards, with low CMC, that fit what you want to do may only be 3 or 4, that everyone wants, high demand equals high price. You can't really compare your casual deck vs. a high end FNM deck. to show the difference my budget deck Token biomancer Bant V3 $121.12 has a dream version if i had the money Bant Token Biomancer A(help) @ $328.5 Just some food for thought.

I'm pretty sure this deck could actually play standard, it just doesn't say so on the site because it assumes I mean older cards, when the cards I actually input/have are pretty new.

nothing with dredge is standard. Standard legal right now is ~innastrad~, ~dark~ ascension~, ~avacyn restored~, ~Magic 2013~, ~return to ravnica~, ~gatecrach~.

All of these cards are from the Golgari vs Izzet dual deck pack which was released on September 2012, are you sure that's not in Standard right now?

dual decks aren't standard, just core sets