Runs one regression test in a new tab (everything it writes is rolled back; test players are cleaned up afterwards). Type part of a name to narrow the list.

By game type: Constructed (your own decks, against the computer or another player), Sealed and Draft (run games). Completed: finished in the month. In progress: started in the month and not finished yet (for last month, ones still unfinished now). Unique players: people who played a game of that type in the month. Games against the computer: all types, completed in the month (the real games a computer-opponent tuning run learns from) and in progress (started in the month, not finished yet). Test players' games are left out; abandoned games are deleted by cleanup, so they are not counted.

Results of games played against the computer, recorded to help tune its play. "Bot win %" is from the computer's point of view. Samples are small, so treat percentages loosely until there are many games.

What players can start under "Sealed & Draft". Each booster is 11 cards (1 rare, 3 uncommon, 7 common). A run is a round robin: one game against each of the 3 computer opponents (since 2026-10-16; runs started before finish under their old win / loss limits). Players can also choose their own packs ("Custom", 6–8 boosters; small sets at most once); its pool is deleted when the run ends (or after the pool life, if unfinished). Draft: a table of 4 (the player + 3 computer drafters); each booster is one round's pack, opened in the order listed (top first), so 6 boosters = 6 rounds of 11 picks. Packs pass left, then right, alternating. Changing a format doesn't affect drafts already under way.

Decks built by the computer (owner "Deck Library") so "Play vs Computer — Random public deck" has variety. New decks are saved private; test them against the players' own public decks, then publish the good ones and delete the weak ones. Building and testing run in the background, one job at a time, at low priority (4 games per deck, about 2–3 minutes per deck).

Per-game Debug flag enables the in-game "Give Card" debug tool for that one game only, without flipping the site-wide DEBUG_MODE kill switch.