Commander decks. Within your budget.
Spend less on your next Commander deck. Set a card budget, track the estimated cost, and find hand-picked cheaper alternatives with an explanation of the tradeoffs. Start fresh or import a decklist.
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An example from the swap library
A cheaper reset, with a real tradeoff
Original card
Cyclonic Rift
$28.56 estimated card price
Budget alternative
River’s Rebuke
$0.31 estimated card price
$28.25 less for this card slot
River’s Rebuke can clear one player’s nonland permanents. You give up instant speed, Cyclonic Rift’s two-mana single-target option, and the overloaded effect that hits every opponent. Consider it when removing one opponent’s board on your turn is enough for your plan.
USD price snapshot from Deck99’s public swap library, September 18, 2026. Prices change and exclude shipping and taxes. These are card prices; exploring curated swaps in Deck99 is free.
Explore the curated swap libraryNew to budget brewing? Read the budget Commander guide.
How it works
Pick a commander & budget
Choose your general and a target. $25, $50, $100, or whatever number you want.
Build with live pricing
Search, add, and watch the total. It flags you when you drift over.
Swap smarter, not blindly
Swap in cheaper cards that keep the deck doing what it was already doing.
Everything a budget brewer needs
Budget-aware building
Every card shows its price and a running total keeps you honest against your target, so there is no surprise when you go to check out.
Curated swaps, with reasoning
Go over budget and you get cheaper cards picked by hand, each with a written reason. Not a black-box algorithm guessing at it.
It knows what you own
Track your collection and every deck tells you how much of it you already have, what it costs to finish, and which upgrades are free because the card is already in your binder.
One-click manabases
Land bases for every color identity and budget tier. Apply one in a click, then tweak it and save your own version.
Know your bracket
Pick a target Commander Bracket and Deck99 works out the one your deck is really in, then flags the exact cards pushing you past it.
Rules at your fingertips
The comprehensive rules and glossary, searchable and built right in so you do not have to go looking.
Your budget goes toward your cards
Set any target for the estimated cost of your deck’s cards. Deck99 tracks that total as you build and helps you explore cheaper swaps. Card prices are estimates and can change; you buy cards separately.
The deck builder and curated budget swaps are free. Optional Pro adds deeper deck analysis and tools for creating your own swaps. Compare Free and Pro.
Already have a decklist?
Copy your decklist as text, open the guest builder, and import it to explore its cost and available swaps. You can try Deck99 before deciding where to keep your decks.
Try it with your decklistStart building. It's free.
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