How the Diamond Dynasty economy works

Stubs are the in-game money. You earn them by playing — completing programs and moments, finishing games, and selling cards you don’t need — and you spend them on the Community Market or on packs. Almost every decision in Diamond Dynasty comes down to one question: is this the best use of my stubs right now? The tools on DiamondOps exist to help you answer it.

You can open packs and hope for a card, or you can buy the exact card you want on the market. Packs are a gamble — you’re paying for a chance, and the average pack returns less than it costs in card value, which is exactly why a healthy resale market exists. Buying the specific card you need is almost always the more stub-efficient move. Packs are for chasing the thrill or a brand-new release before the market settles; the market is for building a team on purpose.

The market works like a simplified stock exchange, with two sides for every card:

• Sell orders — players listing a card they want to sell. The lowest sell order is the buy-now price: pay it and the card is yours instantly.
• Buy orders — players bidding for a card. The highest bid is the sell-now price: accept it and you sell instantly.

The gap between those two numbers is the spread. You can take the instant price on either side, or place your own order a little better than the current best and wait for someone to fill it — patience usually earns you a better price. See the Market & search guide for how to read and filter the listings.

Two rules shape every price on the market. First, the game takes a 10% tax on every sale, so a seller only keeps 90% of the sticker price — the single most important number for anyone flipping cards (we break the math down in The 10% market tax). Second, every card has a quick-sell value: a fixed price the game always pays, with no buyer and no tax. Quick-sell is the floor — a card almost never trades below it, because owners would just quick-sell instead.

Card prices aren’t random. The big drivers are:

• Supply — when a card floods in from a popular pack or a program reward, its price falls; when supply dries up, it climbs.
• Demand & usefulness — cards with great attributes, the right position, or strong quirks hold value because everyone wants them on their squad.
• Power creep — as the season goes on, higher-rated cards keep arriving, and older cards slowly lose value. A 90-overall that was elite in spring may be a bench bat by summer.
• Events & content drops — a new program can make a once-cheap card a collection requirement overnight, spiking its price.

You can watch these moves happen on the trending page, and DiamondOps flags unusual spikes and drops — including price manipulation — as covered in the anomalies & bot-risk guide.

1. 1Earn a stub base by working through the free programs and daily moments.
2. 2Buy the specific cards your lineup needs on the market instead of gambling on packs — you’ll get more team for your stubs.
3. 3Quick-sell or list duplicates and cards you’ve outgrown so your stubs keep working.
4. 4Once you’re comfortable, use the after-tax math to start flipping for profit and fund the expensive cards.