TLDR: The central mtg constructed vs limited distinction is when and from which cards you build your deck. In Constructed, you bring a deck assembled in advance under a particular format’s rules. In Limited, you receive or select cards during the event and build from that event-specific pool. Constructed rewards developing a deck over time; Limited asks you to solve a new card-pool puzzle each time.
That difference affects almost everything around deckbuilding: minimum deck size, duplicate limits, sideboards, preparation, and even what it means for a card to be available. Neither category is universally easier, cheaper, or better. The useful question is whether you want to refine a known deck or build with unfamiliar constraints.
MTG Constructed vs Limited at a glance
| Question | Constructed | Limited |
|---|---|---|
| When is the deck built? | Before the event or match | During the event, after receiving or selecting cards |
| Where do the cards come from? | Your collection or cards acquired for the deck | The pool provided or created for that event |
| General sanctioned minimum | 60 cards | 40 cards |
| Duplicate rule | Generally no more than four copies across deck and sideboard, except basic lands and cards that say otherwise | No general four-copy limit within the event pool |
| Sideboard | Optional, generally up to 15 cards under the baseline tournament rules | All cards in your Limited pool that are not in your main deck |
| Common examples | Standard, Pioneer, Modern, Legacy and Vintage | Booster Draft and Sealed Deck |
| Main preparation task | Choose a format, build a legal deck and refine it | Understand card evaluation, mana balance and deck construction from a restricted pool |
These are the baseline sanctioned-tournament distinctions, not universal rules for every kitchen-table game. Individual formats can change the normal deckbuilding requirements. Commander is the obvious example: it is a constructed deckbuilding experience, but it has its own deck size, color-identity and singleton conventions rather than the ordinary 60-card and four-copy baseline.
How Constructed deckbuilding works
In Constructed, you know the format before you build. That format determines which cards are legal and may impose additional deckbuilding rules. You then assemble the deck before joining the event or match. Wizards identifies Standard, Pioneer, Modern, Legacy and Vintage as Constructed formats, although their legal card pools differ substantially.
Under the general sanctioned Constructed rules, a deck must contain at least 60 cards. It may have an optional sideboard of no more than 15 cards. Except for basic lands and cards whose own text permits more copies, the combined main deck and sideboard may contain no more than four copies of a card, counted by its English card name.
Sixty is a minimum, not a target imposed by the rules. You may register more, but most deckbuilders need a specific reason to do so. A smaller legal deck makes it more likely that you will draw the cards and combinations around which the deck was designed.
Constructed also lets you refine a plan between play sessions. You might adjust the mana base, replace a card that does not support the deck’s main plan, or alter the sideboard for an expected field. Even a basic choice such as using mana-producing creatures to accelerate a strategy can shape the deck’s curve, threats and vulnerabilities.
Because the deck exists before the event, you can learn its recurring decisions rather than starting from zero each time. For casual testing, players may use clearly identified stand-ins or an MTG card printing service to test possible changes, but unofficial playtest cards should not be confused with authentic cards or assumed to be acceptable at sanctioned events.
Constructed does not mean one shared card pool
Calling two formats Constructed does not mean that the same deck is legal in both. Standard uses a different card pool from Pioneer; Pioneer differs from Modern; Legacy and Vintage have their own legality rules. Commander likewise has separate construction rules and a multiplayer identity.
This is why “Is this card legal in Constructed?” is incomplete. The format name matters. A card can be legal in one Constructed format and unavailable, banned or restricted in another. Wizards maintains a current Banned & Restricted list organized by format, which is safer to consult than an undated list copied into a general guide.
How Limited deckbuilding works
In Limited, you do not arrive with a completed deck. You build one from cards made available through the event. Under the general sanctioned Limited rules, the minimum deck size is 40 cards. Any cards in your Limited pool that are not in your main deck become your sideboard.
The normal Constructed four-copy restriction does not apply. If your event pool legitimately contains five copies of the same nonbasic card, you may generally play all five. That does not mean you can bring extra copies from home: the defining restriction is that your deck must come from the pool established for that event.
Limited therefore changes the deckbuilding question. Instead of asking which cards from a broad format pool would make the ideal deck, you ask which colors, creatures, removal spells, synergies and mana requirements are best supported by the cards actually available.
Forty-card decks are practical in that environment because the available pool is much smaller than a Constructed format’s card pool. As with Constructed, 40 is a minimum. Playing exactly 40 is usually the straightforward starting point because every extra card slightly reduces the chance of drawing the strongest cards in your deck.
Draft and Sealed are both Limited, but they feel different
Booster Draft and Sealed Deck are the two Limited formats beginners are most likely to encounter. Both require you to build from event cards, but they create the pool differently. Wizards classifies both as Limited formats.
Booster Draft
In a Booster Draft, players open packs, choose cards and pass the remaining cards around the table according to the event procedure. Your choices determine your eventual pool. You are therefore building on two levels at once: selecting the cards and then constructing a deck from what you selected.
Draft rewards adapting as information changes. An early card may suggest one color pair, but later selections can show that a different strategy is more available. The challenge is not merely identifying the strongest card in a pack; it is deciding which selection best improves the deck your pool can become.
Sealed Deck
In Sealed, you receive a sealed pool and build from it rather than choosing cards through a draft. The pool still limits your options, but there is no pick-and-pass stage. You can inspect everything available and compare possible builds before committing to the main deck.
Exact products, quantities and procedures can vary by event, so the event listing or organizer’s instructions should settle those details. The stable distinction is that Draft creates the pool through selections, while Sealed gives you the pool to evaluate.
How sideboards differ
A Constructed sideboard is deliberately selected before the event and, under the general tournament baseline, contains up to 15 cards. Those cards let you modify the deck between games of a match while remaining within the format and registration rules. The four-copy restriction is counted across the main deck and sideboard together.
In Limited, every card in your registered event pool that is not in your main deck functions as part of your sideboard. You might change colors, add a situational answer or adjust the balance of threats between games. You cannot ordinarily turn your Limited sideboard into a miniature collection by adding unrelated cards from home.
Event-specific rules can affect deck registration and between-game changes, so follow the instructions for the event you are entering. The important conceptual difference is intentional selection versus pool remainder: a Constructed sideboard is chosen as part of advance preparation, while a Limited sideboard emerges from the event pool.
Which category should a beginner try?
Choose Constructed first if you like having a stable deck, learning repeated play patterns and making targeted improvements. It is also the natural choice when friends already play a particular format and can tell you what construction rules they use. Before buying or trading for cards, check the format’s current legality and decide whether your group is playing casually or under tournament rules.
Choose Limited first if opening or selecting a new pool and solving a fresh deckbuilding problem sounds appealing. Sealed removes the live card-selection stage, so it may be easier to approach if you want time to examine one complete pool. Draft adds the challenge of choosing cards while other players are simultaneously shaping their decks.
- Try Constructed if you want to keep one deck and improve it over multiple sessions.
- Try Draft if card selection and adapting to what is available sound like part of the fun.
- Try Sealed if you want a Limited deckbuilding puzzle without making picks around a draft table.
- Ask the organizer whether the event is beginner-oriented and what materials are included before attending.
- Check the exact format and current legality rules rather than relying on the broad Constructed or Limited label alone.
Cost and difficulty depend heavily on the specific format, event and cards involved. A broad claim that all Limited is cheaper than Constructed—or the reverse—ignores entry fees, how often someone plays, the Constructed deck selected and whether the player already owns relevant cards.
What Constructed and Limited mean on MTG Arena
MTG Arena uses the same broad category distinction: Constructed events ask you to bring a deck built before joining, while Limited events have you build from an initially unknown event pool, typically involving opened packs.
That does not mean every Arena queue duplicates a tabletop event procedure. Available formats, entry structures, match settings and digital-only details can differ. Use the event information shown in the client for the exact rules, but carry over the main mental model: prebuilt deck means Constructed; event-created card pool means Limited.
Quick answers to common questions
Is Draft Constructed or Limited?
Booster Draft is Limited. You select cards during the event and build your deck from the resulting pool.
Is Sealed Constructed or Limited?
Sealed Deck is Limited. You build from the sealed pool supplied for that event rather than bringing a finished deck.
Is Standard a Constructed format?
Yes. You build a Standard-legal deck before playing. Standard’s legal card pool and any banned cards can change, so check the current official format information rather than assuming an older deck remains legal.
Can I bring my own deck to a Limited event?
Not as your event deck. Limited requires you to build from the cards in the pool created or provided for that event. You may need to bring accessories or basic lands depending on the organizer’s instructions, but your existing Constructed deck is not your Limited card pool.
Is Commander Constructed?
Commander is a constructed deckbuilding format in the ordinary sense that players assemble decks in advance. However, it has its own rules, so it should not be used as evidence that every Constructed deck has at least 60 cards and permits four copies.
The distinction to remember
Constructed begins with a format and a deck you prepared earlier. Limited begins with an event-specific pool and asks you to build on the spot. Once you know where the cards come from and when the deck is made, the differences in deck size, duplicate limits, sideboards and preparation become much easier to understand. Pick Constructed when you want refinement and familiarity; pick Limited when you want a new deckbuilding puzzle.