846 Gakumas Skill Cards: Understand Your Deck Before You Build It
Gakumas currently has 846 skill cards, but they fall into only three TYPES. Active cards are the ones you play: they cost something and they score or apply a state. Mental cards usually buff or restore, setting up later turns. Trouble cards are junk shuffled into your deck that do nothing but clog your draws. Every card is described by the same handful of fields: cost (what you pay), actions (what it does, e.g. score += 9), conditions (when it triggers), effects (passive effects) and limit. Rarity runs N, R, SR, SSR, and most cards have an UPGRADED version. Cards come from four sources: default, produce pickups, your P-idol's signature cards, and support cards.
846 Sounds Huge, But The Skeleton Is Small
Do not let the number scare you. The entire card system has three types, and once those click, any new card becomes readable in seconds. Active is what actually scores: it costs something, you play it, it does something now. Mental usually does not score at all — it prepares later turns by buffing, restoring, or building a state. Trouble is simply junk: bad cards shuffled into your deck, and every time you draw one, that draw is gone.
Reading A Single Card: Cost, Actions, Conditions, Effects
Every card is described by the same fields. Cost is what you pay to play it. Actions are what happens the moment you do — the game's basic appeal card, for instance, pays a cost of 4 and adds 9 score. Conditions gate when a card actually delivers, and this is where decks quietly break: a strong card that demands a state your deck cannot reliably build is a dead card. Effects cover passive behavior, and limit caps how often it can fire. Look up any individual card in the Gakumas skill card database.
Upgrades: Same Card, Very Different Value
Most cards have an upgraded (+) version that is straightforwardly stronger. That matters when you must choose between ADDING a new card and UPGRADING one you already own. The thicker your deck, the lower your chance of drawing the card you actually need — so upgrading a core card usually beats stuffing in a mediocre extra one. A lean, coherent deck beats a big, cluttered one almost every time.
Four Card Sources, And Why The Source Shapes The Deck
Cards come from four sources: default (the basics you start with), produce (picked up during the run), pIdol (the signature cards of the idol you are producing), and support (granted by the support cards you bring). Only the last two are decided BEFORE the season begins — which P-idol you produce, which supports you bring. Everything else is an in-run choice. That is why a smooth season is really prepared on the team-selection screen, not in the final exam.
Three Deckbuilding Rules That Never Fail
One: every card must serve the scoring engine of your plan — a great card on the wrong axis is still a dead card. Two: fight bloat, because each card you add dilutes the core cards you want to draw. Three: treat Trouble as a problem to be managed, not bad luck to be endured. For a deeper look at costs, conditions and upgrade priorities, read the Gakumas skill cards guide.