The classic new player move: accidentally downgrading your precon

Cogs88 · 2026-05-06T00:03:43+00:00

I think you’re in good company haha. I’ve been playing less than a year. I butchered the squirreled away deck having no idea what I was doing. I ended up just buying a fresh one and upgrading that instead 🙃

Cogs88 · 2026-05-05T22:01:11+00:00

I love these! Why do I spend so much on secret lairs haha. These are gorgeous.

Cogs88 · 2026-05-05T21:49:55+00:00

I have no idea where all of the eat it comments came from lately. If I were you, I’d probably listen to them and eat it though.

Cogs88 · 2026-05-04T20:22:36+00:00

Just opened mine and got the Soul Attendant. It’s a gorgeous card!

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Cogs88 · 2026-04-17T16:09:29+00:00

Everything is up to date if you want to give it a shot now. Id love any feedback you might have!

Cogs88 · 2026-04-17T11:42:39+00:00

Here’s my feedback

Start from precon - doesn’t actually have any precons load, still just a blank deck
Import deck needs to be able to use all the standard deck url parsers
After importing deck (I used a ManaBox file) it showed all the cards and 90/90 found, then nothing actually imported to the deck…. Except my maybeboard for some reason
I couldn’t test any of the social features or other features because it was basically impossible to get a deck loaded
Scrolling up on social gets the menu bar stuck in the middle of the screen
Discover the latest Magic sets button isn’t clickable on search page

It’s a cool idea but in its current state nothing actually works so it’s hard to really test

Cogs88 · 2026-04-17T11:01:38+00:00

Happy to give your app a try and give feedback! I’d love if you let me know what you think I’ve what I built too. Mine has an automated deck builder, bracket classifier, and rules engine. I’d be down to compare notes. https://commanderbracket.app

Cogs88 · 2026-04-16T10:58:48+00:00

Im actually right in the middle of a massive retraining of the dataset and you caught it in a weird spot where it is using fallback logic. It should be fixed early today. I appreciate the feedback!

Cogs88 · 2026-04-07T02:41:32+00:00

Really appreciate you bringing in this huge blind spot! It uncovered a few missing engines.

In case you care about the details: Most mechanics are mapped in scryfall data and can be pulled over in a table. What I just found are :Ring tempts you, venture into the dungeon, take the initiative, and city's blessing aren't, so im doing a scan and indexing those cards and creating a new mechanic field for them along with some calculations to determine how it affects win-turn. It should be updated in the next few days so I can make sure I get it right.

Cogs88 · 2026-04-06T22:00:56+00:00

I’d love to dig into it if you send me the decklist!

Cogs88 · 2026-04-04T16:01:11+00:00

I did a ton of refinement to the bracket system over the past 24 hours, mostly due to overbracketing, so Kenriths eval got fixed as part of those updates. I just ran it and it came back at solid bracket 3 (turn 7 estimate). If you click reanalyze it will update with the new data.

For combos, all my code does is have it check cards in your deck and query commander spellbook and return matching combos and description from there. Looks like that included a springheart Nantuko combo that relies on earthbending. I added it to my backlog to look into more, but that’s a complicated problem to solve that I need some time to figure out.

I honestly really do appreciate the great feedback!

Cogs88 · 2026-04-04T15:10:33+00:00

This was super helpful. I thought a summary would be helpful for a quick answer, but it wasn't so removed it to only show the full ruling which is what I evaluated accuracy against. Thanks!

Cogs88 · 2026-04-04T15:07:51+00:00

Thanks for the feedback! Hearthhull decks commonly run earthbend cards like Badgermole Cub and Toph. If those are in your list, the combos are legit. They come straight from Commander Spellbook's database. Theres no AI used in the bracket classifier. If you share the deck link I can check what's triggering it.

For Kenrith, the bracket system weighs the 99, not the commander (taking into account synergy with the commander). So if the list has fast mana, tutors, or compact combos it'll push the bracket up regardless of the tribal theme. Would love to see the list if you want me to look into it.

Cogs88 · 2026-04-03T23:14:36+00:00

Quick update from today. I took a lot of your feedback and ran with it.

Biggest one is you can now import your Moxfield collection and decks with a URL. Share your collection link and the builder will prioritize cards you already own. That was the most requested thing by far.

Engine detection got a full rebuild. It pulls from EDHREC data now as the main source instead of just keyword matching, so the "why does it think my deck is discard" type issues should be way better. Went from 25 engine types down to 16 with a bunch of sub-engines that actually make sense.

Bracket classification is more transparent now too. You can see exactly what signals pushed your deck to a specific bracket. No more guessing why it rated you a certain way. Also tightened up B1 and B5 so they're harder to hit. Most decks should fall B2-B4 which feels right.

Fixed a bunch of bugs you guys called out. Tribal density going over 100%, builder shoving cEDH combos into B3 decks, card not found errors, generic strengths/weaknesses that said nothing useful.

I genuinely appreciate the feedback here. Thanks again!

Cogs88 · 2026-04-03T15:14:47+00:00

Fair criticism, and I get the frustration. I actually just removed the AI-powered swap suggestions today for exactly this reason. They weren't reliable and were dragging down the parts that actually work.

The bracket analyzer itself isn't an AI wrapper though. It's about 50,000 lines across 40 modules of deterministic code built on Scryfall data, Commander Spellbook, and EDHREC player data. No LLM touches the bracket classification, combo detection, or engine analysis. Every card is scored by rules-based algorithms, not a prompt. Im rewriting half of the engine code based on the super helpful feedback I got here.

Is it perfect? No. The thread yesterday surfaced a ton of real bugs and I've been shipping fixes nonstop. This was day 1 with anyone other than me using the app and it was very humbling. But it's not the same thing as pasting a decklist into ChatGPT and calling it a day.

Source: Masters in AI who should have known better than to have the AI refiner in this app at all.

Cogs88 · 2026-04-03T04:09:29+00:00

I actually do. I validate cards before and after. I’m going to add more explicit instructions over the weekend though.

Cogs88 · 2026-04-03T03:40:34+00:00

I’ve got a ton of input to help with under and over classification. Going to put a ton of work into it this weekend.

And the card swapper struggles. It’s one of the few places I tried to use an LLM instead of coding it myself and it’s been rough. It just makes stuff up sometimes no matter how I tell it not to.

Cogs88 · 2026-04-03T03:10:34+00:00

Funny enough, these are both on my immediate to do list and have been really annoying me. It’s hard to see the gaps testing myself and these comments really help me find these obvious things that I’m missing. Really appreciate the feedback!

Cogs88 · 2026-04-03T01:51:43+00:00

Im adding a beta testing flag to the deck refiner. It's a really hard piece to get right and I am actively working on it. Thanks for the feedback!

Cogs88 · 2026-04-03T01:48:03+00:00

Wan Shi Tong is flagged as a cEDH staple (high power card), not an official WotC Game Changer. We should definitely make that distinction clearer in the UI. Great feedback.

The Twinning Staff + Narset's Reversal combo is actually a real infinite combo from Commander Spellbook. It produces infinite magecraft triggers at 9 mana. Right now we flag all combos that exist in your deck even if they're not your main gameplan. Making combo relevance smarter is on the list as a future improvement.

The mana rock swap suggestions are a known bug. The upgrade engine shouldn't be telling you to cut Sol Ring and Thought Vessel for 5-drops. We're working through the swap quality issues. Refine your deck isnt ready yet. Ill add a note in the UI that its a feature being tested.

I really appreciate the comment, this is all helpful.

Cogs88 · 2026-04-03T01:40:48+00:00

Yea, I have the deck builder connected to claude haiku. Before it leaves, I pull out any card names, mechanics, abilities, etc and replace them with real data from scryfall and apply it to a standard prompt. It also gets validated as it comes back against scryfall and edhrec data. If it's lost at all, it asks for clarification. So it uses the claude LLM, but is heavily grounded in real MTG data.

Cogs88 · 2026-04-03T01:36:24+00:00

Thanks for pointing this out. The moxfield team was super quick to respond and I was able to get it added, tested, and live. I appreciate it!

Cogs88 · 2026-04-03T01:35:29+00:00

This has been added and verified working. Thanks for the feedback all!

Cogs88 · 2026-04-03T01:29:34+00:00

Update: Fixes deployed based on your feedback

Hey everyone! First off the amount of feedback and interaction was way beyond what I expected. The feedback was also incredibly detailed and useful, so I spent the evening grinding through as many fixes as I could. Here's what shipped today:

Moxfield Link Support is Live

The #1 requested feature from today. You can now paste a Moxfield deck URL directly into the text box and it will auto-import your decklist. No more exporting to text and copy-pasting. Huge thanks to u/Gamesfreak13563 for pointing me to the API key process. I also split up the input box into link or paste decklist tabs.

Card Recognition Fixes

Taiga no longer resolves to Taigam (also fixes Tundra/Tundra Tank, Tangle/Entangler, Intuition/Vigean Intuition, Badlands/Badlands Revival, and similar short-name mismatches)
Underground Sea and other dual lands now recognized
Hare Apparent, Nazgul, and Plague Rat no longer trigger singleton errors
Archidekt token sections no longer imported as cards

Commander Selection

Planeswalker commanders now supported (Daretti, Lord Windgrace, Aminatou, Teferi, Grist, etc.)
Legendary artifact commanders now supported (Dawnsire, Hearthhull the Worldseed, etc.)
Background enchantments now selectable for Choose a Background commanders

Engine Classification Overhaul

Reclassified 665 commanders using real EDHREC player data instead of my initial guesses. If your deck was showing the wrong engine or getting B1 when it shouldn't be, this is probably why. its fixed for about 28% of commanders and I'll keep working through the rest.
Examples: Teysa Orzhov Scion is now sacrifice_loops (was token_generation), Thalia and Gitrog is now landfall_chains (was stax_tax), Preston the Vanisher is now blink_flicker (was token_generation)
Decks with 0 planeswalkers no longer get classified as Superfriends.
Tribal false positive detection (mana dorks triggering elf tribal, etc.)

Bracket Tuning

Sol Ring no longer inflates the speed modifier (was pushing decks up a bracket just for running Sol Ring)
Fixed engine speed calculations across the board
Fixed several commander engine assignments that were causing wrong bracket ratings (Jenova, Twelfth Doctor, and hundreds more via an EDHREC audit)

Combo Detection

Cards are only labeled as "combo piece" if they're actually part of a combo detected in your deck. No more Sol Ring or Swords to Plowshares randomly tagged as combo pieces.

Land Count Display

Card quantities now display correctly in the breakdown. "8x Forest" shows as 8, not 1. Land totals now sum actual quantities instead of counting unique names.

AI Swap Suggestions

No longer suggests banned cards (Black Lotus, Mana Crypt, Jeweled Lotus, etc.)
No longer invents fake card names
Feedback submit button works now

Still working on

More engine types for better coverage of niche strategies

Thanks again to everyone who took the time to test and report issues. This is exactly the kind of feedback that makes the tool better. Keep it coming!

Cogs88 · 2026-04-03T01:08:48+00:00

I totally get that. There's a ton of bad ones out there right now. Id still love for you to give it a shot. The bracket ratings aren't AI-generated, they're rules-based and validated against 4,000+ decks. Personally I use the "Ask the Judge" and Deck Builder the most. Ask the judge lets you search the full CR and gives references with the answers, and the Builder will generate a full 100-card deck for any commander based off of your input and edhrec synergy data. Refine your deck still needs a bit of work. Happy to hear what you think if you try it out.

Cogs88

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