Budget Limitation: Spend no more than 50 cents on any single card.
This limitation guarantees that the final deck costs less than $50. My deck has a few outliers that I purchased cheaply (e.g., Darksteel Plate and Nim Deathmantle for 15 cents each) or received in a favorable trade (e.g., Goblin Bombardment and Steel Hellkite), but these are exceptions to the rule. As of September 2017, purchasing the entire deck list from TCGPlayer.com using the Cart Optimizer costs less than $45. (When I first made this deck, it cost less than $30, but Darksteel Plate and Nim Deathmantle continue to rise in price.)
Quote from theMarc »PSA to everyone who keeps forgetting about the Reserved List:
You're on a website dedicated to talking about MtG. You're only a few keystrokes away from finding out what cards are on the Reserved List. You're also only a few keystrokes away from finding out why some cards on the Reserved List got foil printings in FtV, as Judge promos, or whatnot, as well as why that won't happen again. Stop doing this.