TLDR
To playtest commander deck with proxies effectively, freeze one version of the list, build the full 100-card physical deck, sleeve every card consistently, and play several representative multiplayer games before making changes. Record mana problems, dead cards, interaction gaps, win patterns, and table feedback. Revise packages rather than swapping random cards after every loss. Once the deck functions consistently and fits the games you want, decide whether to buy key cards gradually or turn the stable list into a finished proxy deck.
A Commander list can look flawless in a deckbuilder and still become a minor logistics incident at the table. Physical testing exposes opening hands, awkward sequencing, token clutter, unreadable treatments, slow turns, and cards that remain stranded in hand. The goal is not merely to prove that the deck can win. It is to learn whether the complete deck is enjoyable, coherent, and suitable for the pod where you expect to play it.
Start with a frozen decklist snapshot
Save the exact first version before printing anything. Give it a simple identifier such as “Version 1 — March 12” and preserve it in your deckbuilder or a separate text file. If cards change later, duplicate the list rather than silently editing the original. Otherwise, after three rounds of tinkering, you may remember that the deck improved without remembering what actually improved it.
Write down the deck’s intended job alongside the list. Include its commander, expected table environment, primary win conditions, important engines, and the questions the test must answer. A useful test brief might say: “Upgraded casual sacrifice deck; wants to establish an engine by the middle turns; no fast mana; needs to determine whether 36 lands and nine draw effects are sufficient.”
Limit the first test to a few meaningful questions. For example:
- Can the deck cast its commander on schedule without keeping fragile hands?
- Does it recover after its first engine piece is removed?
- Does the interaction work against the decks in the intended pod?
- Are the finishers useful before the final turn, or do they sit in hand?
- Does the deck create turns that are clear and reasonably quick to execute?
This snapshot gives every later change a baseline. If you are still converting a rough idea into a complete list, use the broader finished 100-card Commander deck workflow before beginning the physical test.
Validate the basics before the first game
Commander uses a commander plus 99 other cards, along with singleton and color-identity restrictions, apart from cards such as basic lands or cards whose text specifically permits multiples. The official Wizards Commander format page provides the current construction overview. Count the deck physically instead of trusting that the export, printer, or maybeboard behaved.
Check the current Banned & Restricted list before treating the list as final. Also inspect double-faced cards, companions if relevant, meld pieces, tokens, emblems, initiative or dungeon aids, and any cards that need reminder text. Tokens do not belong among the commander and 99, but forgetting them can make a physical test much clumsier than the finished deck deserves.
For the first pass, confirm:
- Exactly one commander and 99 cards in the main deck
- Every card fits the commander’s color identity
- Singleton restrictions are satisfied
- No currently banned cards are present
- The printed rules text matches the version you intend to test
- Tokens, counters, helper cards, and transform information are ready
Assemble one readable, fair-shuffling proxy deck
A meaningful physical test should behave like one deck. Put every proxy in the same type and color of opaque sleeve. If the proxies are thin paper, place the same kind of backing card behind each one so individual cards cannot be identified by thickness, flex, or feel. Do not back only the expensive cards; that turns every shuffle and cut into accidental marked-card practice.
Readability matters more than visual ambition during this stage. Each test card should have a clear name, mana cost, type line, rules text, and power and toughness where applicable. Use a consistent orientation and avoid art or frame treatments that obscure gameplay information. A beautiful proxy that requires three people to lean across the table and decode it has failed its first job.
Proxy the whole deck when you are testing a new list or a major rebuild. Using only ten proxies inside an established deck is reasonable for a small upgrade package, but it will not reveal whether a new 100-card build has the right mana, curve, engines, and interaction balance. If revisions are likely, keep a small side packet of plausible swaps rather than rebuilding the deck between every game. The guide to ordering extra Commander cards explains how to choose useful flex cards without creating a second maybeboard disguised as a shopping cart.
Have the Rule Zero conversation before shuffling
Ask the actual group whether proxies are welcome before presenting the deck. Casual tables, stores, leagues, and organizers can set different expectations. Explain that the cards are clearly identifiable playtest pieces and describe the intended deck rather than leading with its replacement cost.
Discuss the features that will shape the game: fast mana, tutors, compact combos, mass land disruption, free interaction, extra turns, heavy stax effects, or an unusually early expected win. Commander Brackets can provide shared vocabulary, but Wizards describes them as optional matchmaking guidance used alongside player conversation. If brackets are part of your group’s process, the Commander Brackets proxy-deck guide can help align the list with the desired table.
Wizards’ published proxy-policy explanation distinguishes clearly identifiable playtest cards from cards designed to pass as authentic. It also states that cards used in sanctioned events must be authentic, apart from limited judge-issued replacements for cards damaged during an event. Read Wizards’ proxy-policy explanation and confirm the current rules with the organizer before attending any structured event. A casual Commander night at a store is not automatically permission, and a friendly kitchen table is not automatically a sanctioned tournament.
Run repeated games without rebuilding after every result
One game produces a story; repeated games begin to produce a diagnosis. A deck can flood once, miss a color once, or lose its commander immediately without having a structural defect. Resist the urge to replace five cards while everyone else is still putting away their dice.
As a practical starting loop, play a small batch of games with the same version before revising it. Three games can be a manageable first checkpoint, but it is not a universal statistical threshold. Continue when the games were unusually short, the matchups were unrepresentative, or one player’s explosive start prevented the deck from doing anything informative.
Vary opponents where possible. A creature-heavy pod tests different weaknesses than spell combo, graveyard, control, or go-wide token decks. Goldfishing can reveal sequencing and mana problems, but it cannot show whether your interaction is timely, whether opponents can understand your board, or whether the deck’s threat profile causes it to attract more attention than expected.
Keep a compact post-game change log
Record observations immediately after each game. The log does not need to become forensic accounting for cardboard. Two minutes is enough if the fields are consistent.
| Track | Useful note |
|---|---|
| Opening hand | Keep or mulligan, land count, colors available |
| Mana development | Missed land drops, missing colors, excess mana, awkward tapped lands |
| Stranded cards | Cards that remained uncast and why |
| Interaction | Whether removal or protection arrived at the useful moment |
| Engine performance | What generated cards, mana, tokens, or sacrifice value |
| Ending pattern | How the deck won, lost, or stopped progressing |
| Table fit | Whether speed, disruption, and complexity matched expectations |
Record causes, not just outcomes. “Card X was bad” is less useful than “Card X cost seven and remained uncast because the deck repeatedly used its mana to rebuild.” Likewise, “needed more removal” may really mean the deck had enough removal but lacked flexible answers to enchantments, graveyards, or commanders with protection.
Diagnose the deck by package
After the test batch, group problems into packages. This prevents one memorable loss from causing an unrelated pile of substitutions.
- Mana base: Are land counts, colored sources, and tapped lands supporting the actual curve?
- Ramp: Does acceleration help cast the commander and key plays, or does it become weak late?
- Card flow: Can the deck refill after deploying its opening hand or being disrupted?
- Interaction: Are the answers broad, affordable, and usable when the problem appears?
- Protection and recursion: Can essential pieces survive or return without consuming the entire deck?
- Engine pieces: Do they work independently enough, or is the deck full of cards waiting for another card?
- Finishers: Can the deck convert an advantage into an ending without relying on one fragile line?
- Utility lands and theme cards: Is their special function worth the color or tempo cost?
Change the smallest package that explains the repeated symptom. If several hands cannot cast early spells, review colored sources and the curve before cutting the commander. If the deck draws plenty of cards but fails to affect opposing boards, changing one draw spell into flexible interaction may be more useful than adding another dramatic finisher.
Create Version 2, list every swap, and state the reason beside it. Then repeat the same loop. Holding the explanation next to the change helps prevent circular tuning, where a card is cut on Tuesday and rediscovered as the “perfect solution” two weeks later.
Decide whether to revise, buy gradually, or lock the deck
Run another test cycle when failures remain structural, the table fit is wrong, or several slots are still changing. Abandoning a list is also a successful result if the commander’s play pattern is repetitive, the bookkeeping is miserable, or the strategy creates games you do not enjoy. Proxies have done their job when they prevent an expensive commitment to a deck that looked better in theory.
Buy authentic cards gradually when you enjoy collecting the pieces, need authentic cards for applicable event rules, or want to spread the expense over time. Prioritize commander-specific cards you expect to keep, then fill in flexible staples as the list stabilizes. Avoid buying a costly engine piece merely because it appeared in Version 1.
Lock the finished build when the mana functions, the main engines appear often enough to define the deck, interaction matches the intended environment, and remaining changes are preference rather than repair. Before ordering, run the Commander proxy order checklist to catch missing tokens, double-faced cards, duplicate mistakes, and readability issues.
Turn a stable list into a table-ready project
Once revisions have slowed, decide how the entire deck should look and function physically. Standardize card versions, frames, basic lands, token treatments, and reminder aids. Keep names, mana costs, and rules information easy to read. Cohesion is valuable, but the deck still needs to communicate game state from across a Commander table.
At this stage, you can order a complete build or print only the revised package. Services offering print-on-demand MTG proxies can be useful when you want physical cards for a stable list rather than continuing with temporary paper slips. Commander Proxies also describes its own offering around complete Commander decks and table-ready presentation. Check current listings and commercial terms before ordering, because availability, pricing, and turnaround can change.
Frequently asked questions
Can I playtest Commander with proxies?
Yes, if the playgroup or venue accepts them. Make the cards clearly identifiable as playtest pieces, keep them readable, and disclose their use before the game. Proxy acceptance is a table or organizer decision; sanctioned-event requirements are a separate question.
Do I need to proxy all 100 cards?
For a new deck, proxying the complete commander and 99 gives the most useful physical test because it exposes mana, curve, consistency, handling, and helper-piece problems. A partial proxy package is sufficient when testing a few upgrades in an otherwise established deck.
How many games should I play before changing the list?
There is no universal number. Use a small unchanged batch as the first checkpoint, then ask whether the games were representative. Revise sooner when a construction error is obvious; continue longer when the result came from unusual draws or mismatched opponents.
How can I make a proxy deck shuffle fairly?
Use identical opaque sleeves and give every thin proxy the same kind of backing card. The completed cards should have consistent thickness and feel. Replace bent sleeves or obvious markings before testing.
When is the deck ready to become a finished build?
It is ready when the core list survives repeated games without major structural changes, the play pattern is enjoyable, and its speed and disruption fit the intended table. A few flexible slots can remain; Commander decks are rarely carved into stone, despite what the monolith-themed alter suggests.
Test the deck, not just the dream
The useful loop is simple: freeze the list, validate it, assemble a consistent physical deck, discuss expectations, play unchanged games, log evidence, and revise by package. That process turns proxies into a decision tool. You finish knowing not only whether the deck can win, but whether it deserves a permanent place in your Commander bag.