Your first custom set should be small on purpose. A complete, playable mini-set of 30–50 cards teaches you every part of Magic Set Editor — set setup, card editing, balancing with statistics, and exporting — without the months of work a full 250-card set demands. This walkthrough builds exactly that, in order. It assumes MSE is installed with a Magic template pack; if not, do the installation steps first.
1. Create the set and set it up properly
Start a new set and choose your Magic template — for a first set, pick the standard modern frame from your template pack rather than an exotic showcase frame, so every field and symbol you need is present. Then go straight to the Set Information tab before designing a single card:
- Set name and code: give the set a name and a short code. They appear in the set’s data and exports, and renaming later means touching finished cards.
- Card language: in Set info, under the defaults, set the card language. This is separate from the program interface language (chosen in the welcome window) and controls things like keyword and reminder-text behaviour for your cards.
- Set symbol: MSE includes a vector-based symbol editor, so you can draw a simple set symbol of your own instead of borrowing one. A basic shape is fine — you can refine it later, and the same symbol is reused across the whole set.
2. Design the skeleton before the cards
Decide the set’s shape on paper first: the five colours’ themes, roughly how many commons, uncommons and rares you want, and any mechanics you plan to feature. Then create your keyword list in the Keywords tab for those mechanics — MSE’s automatic keyword system will expand them with reminder text as you type them on cards, which keeps wording consistent across the set. Consistency is the invisible difference between a set that feels real and one that feels homemade.
3. Enter cards in passes, not one by one to perfection
Work through the card list in passes: first pass, names, costs and types for everything; second pass, rules text; third pass, flavour text, rarity and artwork. Keep an eye on the Statistics window as you go — it reports figures such as your average mana cost and the count at each rarity, which is how you notice early that, say, green has quietly become twice as expensive as every other colour. Fixing curve problems at 30 cards is easy; at 200 it is a rewrite.
4. Playtest with random packs and sealed pools
Here is the step most first-time designers skip — and MSE supports it directly. The program can generate randomized booster packs and Sealed pools from your set. Generate a few pools and actually look at them as a player: Is there enough removal? Can every colour build a deck? Do the mechanics show up at common, or only on rares where nobody sees them? A sealed pool is the fastest honest review your set will ever get, and it costs you ten minutes.
5. Export a first version and share it
Export the set as individual card images (PNG) or as an HTML spoiler — both are built-in export options — and get eyes on it. Other players will find the broken card and the confusing wording within a day. Treat that feedback as the next design pass, not a verdict.
One habit to start now: keep a backup copy of your set project file somewhere other than the folder you work in. A set represents weeks of design work in a single project; copying that file to a second location (another drive, or any cloud folder you already use) takes a minute and is the cheapest insurance in this entire hobby.