Unique 99

Unique 99 is a Commander deck uniqueness scoring tool.

Paste a Commander decklist, and U99 scores every card by its Scryfall EDHREC rank, then gives the deck a uniqueness score out of 100. Results include the commander's art, card images for the whole deck, and a filterable card-by-card report.

Project structure

unique99/
  index.html      page markup
  styles.css      all styling
  app.js          parsing, Scryfall lookups, scoring, rendering
  assets/         logo and mana symbol images
  vercel.json

It's a static site with no build step and no backend. Everything runs in the browser.

How card lookup works

1. The decklist is parsed. Moxfield, Archidekt, MTGO, and plain text formats work, including set codes and collector numbers like 1 Sol Ring (FIC) 358 *F*. A Commander section is detected automatically; Sideboard and Maybeboard sections are ignored; basic lands are skipped.
2. All cards are sent to Scryfall's /cards/collection endpoint in batches of 75. A 100-card deck takes one or two requests.
   • When a set code and collector number are given, that exact printing is used, so the images match your printings.
   • Any printing Scryfall doesn't recognize is retried by card name.
   • Anything still missing gets a fuzzy-name lookup to catch typos (for example, "Swords to Plowshare").
3. Results are cached in localStorage for 7 days, so analyzing the same deck again is instant.

Only cards that still can't be matched are listed as "not found."

Scoring

Category	EDHREC rank	Card score	Deck bonus
Commander Staples	1–400	1–27	−2
Commander Favorites	401–1,000	28–49	−1
Playables	1,001–2,000	50–69	0
Pet Cards	2,001–7,000	70–85	+2
Unique Sleepers	7,001+	86–100	+3

Cards with no EDHREC rank score 100.

Deck score = rounded average card score + bonus, where the bonus has two parts added together:

Average card score	Average bonus		Most common category	Category bonus
0–10	−2		Unique Sleepers	+3
11–20	−1		Pet Cards	+2
21–30	0		Playables	0
31–40	+2		Commander Favorites	−1
41–60	+3		Commander Staples	−2
61–80	+5
81–100	+2

For example, a 58 average with mostly Pet Cards gets +3 + 2 = +5, for a deck score of 63. Scores are capped at 1–100.

Same commander mode scores each card by how often it appears in decks with your commander, using EDHREC's public commander data (json.edhrec.com/pages/commanders/<slug>.json, fetched straight from the browser). Partner pairs use the combined page.

Category	In your commander's decks	Card score
Commander Staples	40%+	1–27
Commander Favorites	20–40%	28–49
Playables	10–20%	50–69
Pet Cards	5–10%	70–85
Unique Sleepers	under 5%	86–100

EDHREC only lists cards in about 5% or more of a commander's decks, so unlisted cards are Unique Sleepers: 100, or 94 if the card is a global staple. If EDHREC has no page for the commander, scoring falls back to global ranks and says so.

Commander-aware mode (experimental) adds up to +10 for cards that match the deck's detected themes, plus +2 for staying in the commander's colors.

Other features

• Deck stats: a mana curve and card type chart, compared with EDHREC's average deck for your commander when that data exists.
• Score colors and themes: the score ring changes color by score band, and the page accent follows your commander's colors.
• Recent decks: the last analyses are saved in localStorage. Re-analyzing an edited version of a deck shows how much the score changed.
• Share links: the decklist, commanders, and mode are compressed into the URL hash (#d=…), so the link reproduces the results with no server.
• Share images: a 4:5 post or 9:16 story image is drawn on a canvas, downloadable as PNG or PDF (jsPDF is loaded from cdnjs only when needed).

Running locally

Any static file server works, for example:

npx http-server . -p 5199

Deploying on Vercel

• Framework preset: Other
• Build command: leave empty
• Output directory: leave empty or .

Changelog

v2.2 — two-part bonus, layout cleanup

• Bonus now adds an average-card-score bonus to the category bonus.
• Score card reordered: commander, score ring, label, description, equation (card avg + bonus = deck score), stats, share buttons, then a collapsible "How the score works". Removed the U99 Verdict.
• Deck at a glance drops the bonus column, shows the same 4 columns on phones and desktop, and moves below the card strips. Deck stats moves below the full deck; Recent decks moves to the bottom of the page.

v2.1 — same-commander scoring, sharing, history

• Added "Same commander" compare mode using EDHREC commander data, with per-card "played in X% of decks" info.
• Added share links, post/story share images, and PDF export.
• Added recent decks with score change tracking.
• Added mana curve and card type charts, score band colors, commander color themes, and a card-flip loading animation.

v2.0 — lookup fix + UI overhaul

• Fixed most cards showing as "not found." The old frontend called backend functions that didn't exist, so it always fell back to one Scryfall request per card and got rate-limited after about 20 cards. Lookups are now batched.
• Removed the unused api/analyze.js backend.
• Added card images throughout: commander card and art backdrop, image strips for the most common and most unique cards, a card grid view, hover previews in list view, and a card detail popup with a flip button for double-faced cards.
• Redesigned the layout, added a score ring, a category breakdown bar with clickable legend, and better mobile layout.
• Parser now handles Archidekt categories, Commander / Sideboard sections, and partner commanders from the decklist.