Yes. The MTG Forge deck editor lets you build your own decks from a card pool of tens of thousands of cards, save them for any format, and take them straight into games against the AI to see how they perform.
There is no collection barrier to work around. Every card in the pool is available to you from the moment you install the game, so the only limits on your deck ideas are your imagination and the rules of the format you pick.
Here is what the editor actually gives you, how finding the right cards works, and what testing a finished deck looks like in practice.
What the Deck Editor Includes and How the Card Pool Is Organised
The editor is built around the full Forge card pool, which covers tens of thousands of cards gathered from across the game’s history. Old sets and new sets sit side by side, ready to be mixed into the same deck.
Your workspace is split into clear areas. The card pool fills most of the screen, your growing deck list sits alongside it, and a sideboard area waits for the cards you want as backup options.
Adding Cards and Watching the Count
Cards are added with a click and removed just as easily. As the deck grows, running totals keep track of your card count, so you always know how far you are from a legal deck size.
How the Pool Is Organised
The pool is organised the way players naturally think about cards. Everything can be grouped by set, colour, type, or rarity, which keeps even enormous searches manageable.
Your Library of Saved Decks
Decks you finish can be saved under names you choose. Over time, most players build up a small library of their favourite creations, organised by the format each one belongs to.
Reading a Card Before You Add It
Selecting any card in the pool brings up its full details, including its complete text and picture once its image has been downloaded. Reading the actual card before adding it prevents the classic beginner error of building around an ability the card does not really have.
Finding Cards With Search and Filters
With tens of thousands of cards available, good search tools matter more than anything else. The editor lets you search by card name or by words in a card’s text, which is how you find every creature with a particular ability.
Filters narrow the pool down further. You can restrict results to certain colours, card types, sets, rarities, or mana costs, and combine several filters at once.
Where Deck Ideas Come From
This is where deck ideas usually come alive. Filtering for cheap red creatures shows you the shape of an aggressive deck, while filtering for blue card-drawing spells sketches out a controlling one.
Sorting is just as useful. Ordering search results by mana cost reveals whether a strategy has enough early plays, and ordering by name helps when you are hunting for one specific card.
Starting From Someone Else’s Deck List
If you already have a deck in mind, you can also bring in a deck list from outside and let the editor assemble the deck from that list. That makes it easy to test a deck you came across while reading about the game elsewhere.
Beginners often start by copying a deck list and then changing a few cards at a time. The editor supports that workflow well, because swapping one card for another only takes a moment.
Editing a Copy of a Saved Deck
You do not have to start from a blank page either. Opening any saved deck and editing a copy of it is often the fastest route to a new idea, since the lands, curve, and core cards are already in place and only the theme needs to change.
Saving Decks for Different Formats
A deck only makes sense inside a format, and the editor is built with that in mind. When you save a deck, it belongs to a format, and the deck-building rules of that format shape what the finished list should look like.
The difference is dramatic. A Standard deck is sixty cards with up to four copies of each card, while Commander asks for a hundred cards with only one copy of each, built around a legendary commander.
Check the Format’s Rules Before Saving
Before saving, it helps to glance over the formats you can build decks for and keep their deck rules in mind. Choosing the format first prevents the classic mistake of finishing a deck that is illegal for the games you wanted to play.
Keeping Versions and Clear Names
Saving several versions of the same idea is easy and worth doing. Keeping an earlier copy of a deck means a round of changes that makes things worse never costs you the original.
Clear names pay off sooner than you expect. A library full of decks called by their colours, format, and theme, with the date or version tucked at the end, stays easy to browse months later, while a folder of vague names quickly becomes a guessing game.
Saving Decks for the AI to Face
Many players also keep a collection of opponent decks. Filling the AI side with varied saved decks turns casual testing into something closer to a real gauntlet.
Testing a New Deck in Games Against the AI
A deck list on its own proves nothing, which is why testing is built into the flow. Once a deck is saved, you can select it for a match and face the AI straight away.
The AI pilots a range of its own decks and plays full games with them. You get real draws, real mulligan decisions, and real pressure, rather than a goldfish exercise against an empty chair.
Small Loops and Honest Patterns
Testing works best in small loops. Play a few games, note where the deck stumbles, return to the editor, change a handful of cards, and play again with the updated list.
Pay attention to patterns rather than single games. If you keep losing with a hand full of expensive cards, your mana curve is the problem, and no lucky draw will hide that for long.
Handing Your Deck to the AI
You can also test one of your decks against another of your own creations by handing it to the AI. Watching the computer pilot your older deck is an honest way to see its weaknesses from the other side.
Notes and the Long Evening of Testing
Keeping simple notes makes the loop even stronger. A few words after each testing session about what flooded, what starved, and which cards never earned their place will guide your next edit far better than memory alone.
Over an evening of testing, a rough draft of an idea becomes a deck with a plan. That loop of building, playing, and adjusting is the heart of deck building, and Forge supports every step of it for free.
Limits of the Editor Compared With Paper Deck Building
For all its strengths, building in Forge is not identical to building with physical cards. The most obvious difference is that no collection limits your choices, so the budgeting and trading side of paper deck building simply disappears.
The card pool, while huge, is still an implemented selection rather than literally every card ever printed. A very recent release or an obscure old card might not be there yet when you go looking for it.
Where AI Testing Falls Short
Testing against the AI also has limits. The computer makes its own kind of decisions, which are not always the decisions a skilled human would make, so a deck that crushes the AI might still struggle at a real table.
There is no local metagame either. In paper play, you build with your friends’ favourite decks in mind, while in Forge the field is whatever saved decks and built-in decks you choose to face.
The Missing Social Side of the Hobby
The social side of paper play is missing as well. There is no trading binder, no shop conversation, and no friend leaning over your shoulder arguing for their favourite card, and for some players that conversation is half the hobby.
None of this cancels out the editor’s value. It just means you should treat Forge testing as strong practice and a great filter for ideas, rather than a perfect prediction of paper results.
Frequently Asked Questions
How many cards can you choose from in the MTG Forge deck editor?
The card pool holds tens of thousands of cards from across the game’s history. You can use any of them in your decks from the moment the game is installed.
Do you need to unlock or buy cards before building a deck?
No. Forge does not gate cards behind a collection, purchases, or unlocks in its regular modes, so every card in the pool is available for deck building straight away.
Can you save more than one deck in MTG Forge?
Yes, you can save as many decks as you like and name them yourself. Most players keep a library of decks sorted by format, plus a few saved specifically for testing.
Can the AI play with a deck you built?
Yes. You can hand one of your saved decks to the AI and play against it yourself, which is a useful way to see how the deck performs from the other side of the table.
Conclusion
The Forge deck editor gives you the complete brewing experience: a vast card pool, search and filters that make it manageable, saving for every format, and instant testing against the AI. Its limits are real but fair, and they mostly come from the difference between computer opponents and human ones.
If you enjoy the puzzle of building decks as much as playing them, this is where much of your time in Forge will happily go.