Meta methodology
What's counted
One population per set and per circuit. Majors is every canonical tournament deck from large public tournament results (average field 181 players). Online is every deck from tournaments reported on play.limitlesstcg.com, which are mostly online locals (typically around a dozen players) plus some in-person store events. The two are never added together; an event that appears in both is counted once in each. Every deck links to the tournament it was played at.
Tiers (ranked by meta-share)
Archetypes are ranked by their share of the population, not by performance: S ≥ 10%, A 5–10%, B 2–5%, otherwise Fringe. Unlabeled/unclassified decks fall into an Other bucket that counts toward the sample but gets no tier row.
Sample size & the n-floor
Every view shows its sample size n. Below 8 decks for a set we withhold the tier list and show an insufficient-data notice instead (the underlying values are still computed).
Performance, shown alongside
We show average placing, 1st-place count, top-8 count, and top-cut share (an archetype's % of the set's top-8 decks). We deliberately do not publish a “conversion %”: the corpus skews to top finishers and has no reliable total-entries denominator, so a conversion rate would be misleading.
What Deckodex calculates
Tournament standings and decklists are public results. Everything built on top of them is computed here: meta share and tiers, sample sizes, average placing, 1st-place and top-8 counts and top-cut share, how each event's field compares with its set's meta, week-over-week share movers and the weekly report, per-card play rates and average copies, which cards are played together, and price movers from daily TCGplayer and CardTrader prices. Price-to-build is each card's count times the latest market price of its cheapest print. Figures marked Deckodex calculation link back here.