The resource for low-budget Commander deckbuilding
Two‐Dollar Commander, also known as “2DH”, is a Commander (or EDH) variant format where each card in your deck costs $2 or less. Newer players, and players on a budget can build competitive decks, without breaking the bank.
The beginning of the Two‐Dollar Commander season starts with the release of new Commander products. For 2017‐18, it started August 25th.
Whenever a product featuring a booster box has a pre‐release, two weeks after the product’s official release the pool is updated to include any Commander‐legal cards ever that have newly reached $2 or less.
Any card that is in the pool remains legal until the end of the season, even if the price jumps over $2. So if your deck would contain cards that might go over, the deck is still good to play with.
Cards as commanders are a bit more lenient. They are legal when priced at $5 or less.