How Delvefall works

Type a card name, get the cards that do the same thing. Delvefall isn't a chatbot guessing: it compares the printed rules text of every Magic card with plain math.

Reading a result

Clicking a result's picture opens it on Scryfall. Ctrl-click (cmd on mac) searches that card here instead, for following a thread without leaving.

The slider: rules text vs concepts

Two ways for cards to be similar, one slider between them.

• rules text (the left end, the default): cards whose printed text works the same way. Search Sol Ring, get the other rocks that tap for two.
• concepts (the right end): cards built around the same idea, from community tags. Search Sol Ring, get the whole mana-rock family.
• In between, both count. The badge on every card shows the blend that ordered the list, and the list is always in order of the number you see.

On the mixed positions the min match bar relaxes from 80 to 70 by itself (blended scores are averages, they rarely reach 80). A note says so when it happens, one click keeps your own bar instead. The slider remembers where you left it. From the perspective of rules text and the slider position on the left, this is how much concepts are weighted into the result: 0/25/50/75/100

Search one ability, not the whole card

On the results page your card's rules text is listed line by line. Click a line and the search uses just that ability. Click more lines to combine them.

Filters and tricks

• Every filter lives behind the "extra filters" fold in the filter bar, each one explained where it sits. Filters narrow who competes, never the scores.
• The filter bar below the chosen card is a search box that uses scryfall's syntax and applies it to the results (the search box itself only takes card names). -o:sacrifice usd<=5 keeps results cheap and free of sacrifice clauses. The full set:
  • o:word rules text contains it, o:"draw a card" for phrases
  • t:legendary the type line must contain this, any word works
  • id:wu color identity (fits-within), id:c colorless
  • otag:removal the community tags, served from this site's own daily mirror of scryfall's tagger data
  • usd<5 usd>=1 price in dollars, eur<5 in euros, price<5 whichever the currency switch shows, mv<=2 cmc=4 mana value
  • is:dfc two-sided cards, is:split is:mdfc is:saga and other layouts, is:gamechanger the commander watchlist
  • f:commander legal in commander, banned:commander the reverse (commander is the only format tracked)
  • a - negates anything (-t:creature means no creatures), words side by side mean and, or and parentheses group: (o:draw or o:scry) -t:creature
  That's the whole vocabulary, not all of scryfall's. There's no pow/tou, rarity, set, artist, format beyond commander, or regex here yet, the cards table just doesn't carry those fields. Anything the box doesn't recognise is skipped rather than erroring, so a stray word never breaks the search.
• Price sorts keep the quality bar: results still have to pass min match, they just reorder by cost. Handy for finding the budget version of an expensive card.
• Everything under the min match bar still exists. The "show weaker matches" button at the bottom pages through all of it, weakest last.
• Missing a card you expected? The "expected a card that isn't here?" link checks it against your filters and the matcher, and tells you if one hid it.

Unique cards

The unique page is the opposite of search: it deals you cards that do something no other card really does, always from the 100 most unique cards (would you believe it) you haven't seen yet. It has the same slider and filters. On the rules text end you get (hopefully interesting) abilities, on the concepts end you get cards whose tag profile matches nothing else. The arrows walk back through everything you've been dealt, across visits.