How to Upgrade a Commander Deck: Step-by-Step Method (2026)

How to upgrade a Commander deck: the 7-step method

When a deck works in some games and seems to do nothing in others, blaming bad luck is easy. Commander has variance — 99 different cards around the commander — but many seemingly random stumbles come from construction: too few sources of a colour, too many expensive spells, overly narrow answers or several strategies competing for space.

This is the process we use to upgrade a Commander deck without erasing its personality:

1. Define the main plan and the kind of table you want to play at.
2. Gather information from real games, not just impressions.
3. Audit the mana base, curve and essential roles.
4. Identify the cards contributing least to the plan.
5. Design a package of changes within your budget.
6. Test five to ten changes together over several games.
7. Adjust again based on results, not a single win or loss.

If you are building from scratch, start with our guide to building a Commander deck. If you already have the list, keep reading: the task here is diagnosis.

Step 1: define what to keep and what to improve

Before touching a card, write one sentence describing the deck. For example: “I want to fill the graveyard, recover value creatures and win through a board that is difficult to exhaust.” That sentence is your filter. A card can be powerful and still not belong in that deck.

Also clarify four boundaries:

• Desired experience: relaxed casual play, tuned games or a demanding table.
• Total budget: what you can invest now, not what an ideal list would cost.
• Untouchable cards: commander, favourites, thematic pieces or cards with sentimental value.
• Priority outcome: more speed, resilience, fewer bad hands, more interaction or a clearer finish.

Discussing the expected level before playing matters as much as optimising the list. A perfectly built deck can still fit a particular table poorly. The best upgrade brings the deck closer to the games you want to play.

Step 2: diagnose through real games

A list shows proportions; games show friction. Over five games, record simple details:

• Did you mulligan, and why?
• Did you play a land in each of the first four turns?
• Could you cast your commander when you wanted?
• Did you run out of cards in hand?
• Did you have an answer to the threat that decided the game?
• Which card stayed in hand without a reasonable opportunity to play it?
• How did the deck try to win, and which piece was missing?

Do not cut a card because it was bad once. Cut it when the same problem repeats or its role does not help the plan. This small distinction prevents the deck from becoming a collection of reactions to the last game.

Repeated symptom	Likely cause	First adjustment to test
You cannot reach four mana	Too few lands, high curve or insufficient ramp	Add mana sources and lower costs
You have mana but no plays	Too little draw or too many situational cards	Add flexible card advantage
Your engine disappears and you cannot recover	Lack of protection or recursion	Reserve slots for recovery/protection
An opposing permanent dominates the table	Too little or overly narrow interaction	Add cheap, versatile answers
You generate resources but cannot finish	Unclear win condition	Focus the finishing pieces
Several cards do not work together	Too many subthemes	Choose a main plan and cut the rest

Step 3: audit the deck’s roles

No template works for every commander, but every list must answer functional questions. Use these quantities as a starting point, never a rigid rule.

Mana base and coloured sources

Many decks start around 35–38 lands, then adjust for curve, commander cost, ramp and draw. Counting lands alone is not enough: count how many produce each colour and when you need that colour.

If many low-cost spells require two symbols of one colour, you need enough early sources. If too many lands enter tapped, the count may look correct while the deck still plays a turn behind.

Ramp and acceleration

Ramp takes you from normal development to the turns when the deck starts functioning. A common reference is 8–12 slots, but selection matters: a cheap commander does not need the same package as a seven-mana one.

Prioritise ramp you can play before your commander that produces the required colours. In strategies that frequently destroy or sacrifice artifacts, finding lands may be more resilient than relying only on mana rocks.

Draw and card advantage

Drawing one card helps; maintaining a flow of resources wins long games. Aim for around 8–12 draw or advantage sources, mixing immediate effects with repeatable engines that fit your plan.

Do not count a card as “draw” if it only works with an already perfect board. The worse your position, the more you will appreciate a cheap, reliable part of the package.

Interaction and board wipes

Interaction keeps the deck from playing solitaire. As guidance, reserve 8–12 targeted answers and 2–4 wipes, adjusted to your group’s pace. Try to answer creatures, artifacts, enchantments and particularly problematic permanents within your colours.

Flexible answers are usually better than spectacular cards with overly narrow targets. Some interaction should also be cheap: answering does not help if you always spend all your mana on your own turn.

Protection, recursion and finishing plan

If the commander concentrates the deck’s value, add ways to protect it or recover when it is neutralised. If the strategy fills the graveyard, recursion can serve two roles at once. The quantity depends on how much losing a piece hurts your plan.

Finally, explain how the list wins in one sentence. “Accumulating value” is not yet a win condition. Attacking with a wide board, chaining a particular synergy or turning resources into damage are. Include enough pieces to finish without filling the deck with cards useful only when already ahead.

Step 4: cut before adding

The hardest part of upgrading is freeing slots, not finding new cards. Make an initial candidate list without buying anything and ask of each card:

• Does it directly contribute to the main plan?
• Is playing it reasonable with my curve and coloured sources?
• Does it work when behind, or only when already ahead?
• Does another card in the list do the same job more flexibly?
• Would I keep it without attachment to its artwork or rarity?

A clean method is one in, one out. Every addition should identify its replacement and explain why. This keeps you at 100 cards, preserves clear proportions and makes the change’s effect explainable.

Initial cuts usually come from four groups: off-theme cards, expensive spells with little immediate impact, overly situational pieces and inferior functional duplicates of included options.

Step 5: upgrade in packages, not individual cards

Buying an expensive card may raise the deck’s ceiling without fixing its floor. A coordinated eight-card package can improve opening hands, bring the commander forward and provide resources in long games.

Prioritise the budget like this:

1. Consistency: coloured sources, curve, ramp and draw.
2. Ability to respond: flexible interaction and protection.
3. Synergy: pieces that multiply the main plan.
4. Speed or luxury: premium versions of already covered effects.

With a small budget, first replace cards occupying slots without doing their jobs well. With a medium budget, improve several areas together. Only when the structure is solid does paying heavily for marginal optimisation make sense.

For affordable ideas, see our budget Commander deck selection, and remember you can find specific pieces in our singles section.

A practical upgrade example

Imagine a green-black deck that sacrifices creatures and recovers graveyard value. Testing reveals slow opening hands, several uncastable large creatures and lost momentum whenever the main engine is removed.

Adding another spectacular seven-mana creature would be a poor solution. A coherent upgrade could be:

• Cut three expensive threats with nearly identical roles.
• Remove two cards that only work with an already large board.
• Add two two-mana ramp pieces.
• Add two sacrifice-based draw engines.
• Add one cheap recursion piece.

The deck has not changed identity. It still sacrifices creatures and uses the graveyard, but starts earlier, recovers resources and draws fewer stalled hands. That is optimisation: making the enjoyable part happen more often.

Step 6: test the package of changes

After updating the list, play five to ten games whenever possible. Do not measure only wins: Commander depends on the table, turn order and several players’ decisions.

Measure more useful signals:

• Percentage of opening hands you can keep.
• Average turn when you deploy your engine.
• Number of turns with useful cards in hand.
• Ability to recover after a wipe.
• How often you can interact without abandoning your plan.
• How clearly the deck turns advantage into victory.

If you change twenty cards at once, identifying the cause of results is hard. Start with a limited, coherent package. Save the previous list: comparing versions prevents repeated changes and lets you revert without losing information.

Common Commander upgrade mistakes

Copying every staple in your colours

A staple is popular because it works in many decks, not because yours must include it. Every generic card reduces space for the deck’s identity. Include a piece when it solves a specific need.

Cutting lands to fit “one more card”

Cutting mana without adjusting curve, ramp and draw makes a deck look powerful on paper but unable to cast its spells. Evaluate the whole system before removing a land.

Having too many win conditions

Five finishers needing different support often get in each other’s way. It is better for several cards useful throughout the game to converge on one or two finishes compatible with the main plan.

Ignoring your playgroup

An upgrade does not exist in isolation. If your games aim for long development and conversation, pushing towards a very early finish may worsen the experience despite increasing power. Define expectations before optimising.

Changing out of frustration

A card cut after one failure never gets a fair evaluation. Find patterns, record games and change with a hypothesis: “adding two green sources should reduce hands unable to cast early ramp”.

Checklist for reviewing your list

Before considering a version finished, check:

• ✅ The deck has exactly 100 cards, including the commander.
• ✅ All cards respect colour identity and format legality.
• ✅ You can explain the main plan in one sentence.
• ✅ The curve allows relevant early plays.
• ✅ Coloured sources match your spells’ actual costs.
• ✅ There is enough ramp, draw and interaction for your strategy.
• ✅ You can answer more than one permanent type.
• ✅ There is a clear way to finish the game.
• ✅ You have identified cuts before buying additions.
• ✅ The result fits your budget and intended table.

The format’s basic rules — 100 cards, singleton and colour identity — are available on Wizards of the Coast’s official Commander page.

Want an upgrade proposal made for your list?

You do not have to start over. Our Commander upgrade service aims to preserve the idea you enjoy and address weaknesses with changes you can buy and test. For a completely new deck, use the custom Commander deckbuilder.

Commander upgrade FAQs

How many cards should I change at once?

Five to ten is usually manageable: enough to fix one functional area, small enough to compare results. A precon mixing several strategies may need a larger review, but dividing it into stages still helps.

How many lands should the deck run?

35–38 is a common starting range. Adjust for average cost, commander, ramp count and cost, tapped lands and draw. A very low-curve list differs from one built around large creatures.

Which cards should I cut first?

Cut those outside the main plan, too slow for their impact, dependent on unlikely situations or inferior at a duplicated role. Do not start with favourites if they are precisely why you enjoy the deck.

How much does upgrading a precon cost?

It depends on the aim, but you need not rebuild everything. A first budget package focused on mana, draw and interaction may matter more than one expensive purchase. Set the budget before choosing cards.

How do I send my list for review?

Go to Upgrade my Commander deck, paste one card per line — MKM export format works — and enter commander, budget, goal and untouchable cards. The website validates the details and prepares the request for WhatsApp.