Changes

• June 2
  Better detect some things that look like they're synergistic but aren't really (e.g. Cryptic Trilobite in Zimone, Infinite Analyst).

• May 24
  Some more extensive detection of commanders that synergise with types of things not previously captured (e.g. X costs in spells).

• May 5
  Some changes to how removal suggestions work around precons, where it was over-recommending removing cards you'd added.

• March 27
  Identify some cards that have reduced utility in singleton formats (like March of Burgeoning Life).

• March 8
  Added support for loading Scryfall deck lists.

• March 7
  Detects low land counts and makes general suggestions to add extra lands in those cases (for lower brackets only).

• February 28
  Updated to match the “vehicles as Commander” rule.

• March 3
  Better filtering of not-included-in-deck cards from Archidekt.

• February 10
  No actual changes because Wizards have done the sensible thing and not changed hybrid mana (which would have been a nightmare to reprogram).
  Lutri has been unbanned, but remains illegal as a companion, so we don't have anything to change there either.
  And there was much rejoicing.
  

• January 3
  Prefer printings of cards that don't have flavour names, and try to avoid some of the more extreme alt printings like Final Fantasy Through the Ages or Avatar Eternal.

• January 2
  More aggressively avoid suggesting cards from precons for those commanders; they should more or less never come up now.
  The assumption is that decks with those commanders were likely from a precon originally, so they could easily have used those cards but chose not to. They might be 'good' suggestions, but we'd like to focus on finding things that are less obvious.

• November 1
  Correction to land tutor targets: Don't suggest a 2-colour land if the deck has 3-colour tutors available, i.e. if it has Indatha Triome, we don't then need to suggest Haunted Mire because we already have a target that we could tutor for.

• October 20
  Minor, very specific fix: Stop recommending Managorger Hydra as an upgrade to Taurean Mauler.
  Technically maybe it is, but in my experience the Mauler is usually played because it's a changeling and the Hydra isn't. I've had several decks that play it and none of them want this upgrade.

• October 19
  Now makes recommendations for land tutor targets
  Specifically, if you have something that searches for specific land types (like Nature's Lore) and don't have dual-land targets for it, then we'll recommend something to fill it in - e.g. Vernal Fen or Haunted Mire for a Golgari deck without any Swamp / Forest lands.

• September 14
  Game changers are taken into account when recommending cards
  Specifically, they are less recommended for decks in bracket 3 and essentially banned for decks in brackets 1-2.
  Brackets are shown on the deck page when available.

• September 13
  Support silver-bordered & playtest commanders.
  Deck Distiller will now suggest silver-bordered cards for them, but not for normal legal commanders.

• July 19
  Take into account cards that were part of a precon, but are now removed

• June 22
  Take n-gram stats into account across other decks with the same commander

• April 26
  Update icons to newer design

• April 10
  Take reminder text into account when considering n-grams of card text.
  This allows suggestions to identify certain keywords as being useful which isn't obvious just from their name.

• April 7
  Added MTGGoldfish and TappedOut parsing support

• April 3
  Internal overhaul to card type lines to improve handling of cards like Fire // Ice, which was getting double-counted as an instant.

• April 2
  Made deck display on mobile less awful.

• April 1
  Changed deck URLs to be symbolic rather than using the deck's ID.

• March 29
  Chose the new name! The old name shall be consigned to the mists of history.

• March 28
  Added feedback page & backend support for storing it (we have a DB now!).

• March 26
  Added privacy policy and T&Cs.
  Added Strip Mine and Wasteland to the 'power list' of cards we don't recommend as 'strictly better'. They're both strict upgrades on a few more common lands but aren't very available; if people are playing Ghost Quarter or Encroaching Wastes, they aren't likely doing it just because they haven't thought of Strip Mine.

• March 25
  Don't suggest Relentless Rats style cards as potential upgrades; it's not really useful to suggest adding one copy of Dragon's Approach.
  If a replacement for the commander is requested, make sure it is a legendary creature (this is relevant for Jushi Apprentice, where it is in the type line, but it's not a legal commander). Also make sure the colour identity matches exactly, not just a subset as for other cards.

• March 24
  Add proper support for companions & their deckbuilding restrictions.
  This doesn't work properly for Umori, sadly, due to implementation detail (it isn't able to review the whole deck list for every candidate).
  It also doesn't work for Lutri or Yorion, but neither is a legal companion in Commander anyway.

• March 23
  Display both halves of partner commanders on the landing page.
  This was more CSS than I really wanted to get into but I think it works (and in > 1 browser...)
  Also fix a bug where partner commanders were coming out unpredictably and sometimes missing.
  Remove some feline input on one page.

• March 21
  Use specific 'iconic' versions of certain cards, e.g. Sol Ring, where we don't necessarily want to display the most recent printing (which happens to be Mardu-themed right now, so not appropriate for most decks).
  Fix a bug where we could sometimes recommend cards outside the colour identity, because we'd seen them in other cases that were also illegal.

• March 20
  Card popularity now scores quadratically instead of linearly.
  I think this makes sense; it is now recommending Command Tower for a couple of my decks that inexplicably didn't have it. That's very much the kind of suggestion we should be making.

• March 19
  Render deck highlights as the deck's colour identity.
  This is kinda silly but it felt off when a mono-black deck got a green highlight.

• March 18
  Identify 'hero images' from the deck and show them in the background on the frontend. Extensive CSSing needed.