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MTGA_Draft_17Lands

Magic: The Gathering Arena draft tool that utilizes 17Lands data.

This application will automatically support new sets as soon as the sets are released on Arena and the data is available on the 17Lands card ratings page.

Supported Events: Premier Draft, Traditional Draft, Quick Draft, Sealed, and Traditional Sealed

Premier_Draft

Table of Contents

Run Steps: Windows Executable (Windows Only)

  • Step 1: Download the latest zip file from the releases page.

  • Step 2: Unzip and double-click the exe file to start the installation.

  • Step 3: (Optional) Go to the installed folder and right-click the executable (MTGA_Draft_Tool.exe), click properties, compatibility tab, and check Run this program as an administrator.

    • This step is only required if the application is installed in a directory with write restrictions (i.e., Program Files and Program Files (x86)).
    • This step isn't necessary if the application is installed in the main directory of a drive (i.e., C:/ or D:/) or the Users/<Username>/ directory

  • Step 4: In Arena, go to Adjust Options, Account, and then check the Detailed Logs (Plugin Support) check box.

  • Step 5: Double-click MTGA_Draft_Tool.exe to start the program.

  • Step 6: Download the sets that you plan on using (Data->Add Sets).

    • Event datasets can be used for different events (e.g., you can use the premier draft dataset for a sealed event).
    • Quick draft players should consider using the premier draft dataset when quick draft initially becomes available.

  • Step 7: Configure the tool through the Settings window.

    • Users that are new to 17Lands might find the Win Rate Grades (Win Rate Format: Grade) more useful than the win rate percentages.
    • The UI Size setting can be used to adjust the image and text size.

  • Step 8: Start the draft in Arena.

    • The Arena log doesn't list P1P1 for premier and traditional drafts until after P1P2.
      • The Card Compare feature can be used as a substitute for P1P1.
    • The sealed card pool can be found in the Taken Cards window.

Run Steps: Python (Windows/Mac/Linux)

  • Step 1: Download and unzip the MTGA_Draft_17Lands-main.zip file or clone the repository.

  • Step 2: Download and install the latest version of python 3.

  • Step 3: Install the python package installer Pip by opening the terminal and entering python -m ensurepip --upgrade or python3 -m ensurepip --upgrade.

  • Step 4: Open the terminal and install the python dependencies by entering pip install -r requirements.txt or pip3 install -r requirements.txt.

  • Step 5:

    • (Mac Only) Install web certificates by going to /Applications/Python 3.##/ and double-clicking the file Install Certificates.command.
    • (Linux only) Install Tk

  • Step 6: In Arena, go to Adjust Options, Account, and then check the Detailed Logs (Plugin Support) check box.

  • Step 7: Start the application by opening the terminal and entering python main.py or python3 main.py.

  • Step 8: If the application asks you for the location of the Arena player log, then click File->Open and select the log file from one of the following locations:

    • Windows: {drive}/Users/{username}/AppData/LocalLow/Wizards Of The Coast/MTGA/Player.log
    • Mac: {username}/Library/Logs/Wizards Of The Coast/MTGA/Player.log
    • Bottles (Linux): /home/{username}/.var/app/com.usebottles.bottles/data/bottles/bottles/MTG-Arena/drive_c/users/{username}/AppData/LocalLow/Wizards Of The Coast/MTGA/Player.log
    • Lutris (Linux): /home/{username}/Games/magic-the-gathering-arena/drive_c/users/{username}/AppData/LocalLow/Wizards Of The Coast/MTGA/Player.log

  • Step 9: (Mac Only) Set Arena to window mode.

  • Step 10: Download the sets that you plan on using (Data->Add Sets).

    • Event datasets can be used for different events (e.g., you can use the premier draft dataset for a sealed event).
    • Quick draft players should consider using the premier draft dataset when quick draft initially becomes available.

  • Step 11: Configure the tool through the Settings window.

    • Users that are new to 17Lands might find the Win Rate Grades (Win Rate Format: Grade) more useful than the win rate percentages.
    • The UI Size setting can be used to adjust the image and text size.

  • Step 12: Start the draft in Arena.

    • The Arena log doesn't list P1P1 for premier and traditional drafts until after P1P2.
      • The Card Compare feature can be used as a substitute for P1P1.
    • The sealed card pool can be found in the Taken Cards window.

Build Steps: setup.exe (Windows Only)

  • Step 1: Download and install the latest version of python 3.

  • Step 2: Install the python package installer Pip by opening the terminal and entering python -m ensurepip --upgrade or python3 -m ensurepip --upgrade.

  • Step 3: Open the terminal and enter pip install -r requirements.txt or pip3 install -r requirements.txt.

  • Step 4: Download Inno Setup

  • Step 5: Build MTGA_Draft_Tool.exe by opening the terminal and entering pyinstaller main.py --onefile --noconsole -n MTGA_Draft_Tool --clean

    • Move the MTGA_Draft_Tool.exe file from the dist folder to the main MTGA_Draft_17Lands folder.

  • Step 6: Open Installer.iss in Inno Setup and click Build->Compile.

    • In the {app} folder, rename the mysetup.exe file to setup.exe and move the file to the main MTGA_Draft_17Lands folder.

UI Features

  • Current Draft: Lists the current draft type (i.e., Premier, Quick, or Traditional) that the application has identified.

    • In the Arena logs, P1P1 doesn't appear for Premier and Traditional drafts until after P1P2.
    • You can hide this feature by deselecting Enable Current Draft Display in the Settings window

  • Data Source: Lists the current draft type (i.e., Premier, Quick, or Traditional) from which the application is pulling the card data.

    • The application will attempt to pull data for the current draft type and set (e.g., data from NEO_PremierDraft_Data.json for a Premier Draft). If the user hasn't downloaded the data file for the current draft type and set, then the application will attempt to use a different data file from the same set (e.g., NEO_QuickDraft_Data.json if NEO_PremierDraft_Data.json isn't available).
    • This field will display "None" if the application is unable to find a valid data file for the current draft type and set.
    • You can hide this feature by deselecting Enable Data Source Options in the Settings window

  • Deck Filter: A drop-down that lists all of the available deck color permutations that you can use to filter the deck card ratings.

    • The percentage next to the number represents the win rate for that color combination. These percentage values are collected from the color ratings page on 17Lands. If there are no values, then that means the sample size was too small to determine the win rate (unpopular deck combination).
    • The All Decks option lists the combined rating across all of the deck color combinations -The Auto option will keep the filter at All Decks for the first 15 picks and then switch over to the filter that best matches your taken cards. See the Auto Highest Rating note in the Card Logic section.
    • You can hide this feature by deselecting Enable Deck Filter Options in the Settings window

  • Refresh Button: Trigger a log read.

    • The application will automatically read new log entries, so this button is not required unless you are using an outdated operating system (Windows 7 or 8).
    • You can hide this feature by deselecting Enable Refresh Button in the Settings window

  • Pack / Pick Table: This table displays the cards included in the current pack.

    • If a dataset is missing Data Source: None or an unrecognized card is listed, this table will show a number under the name column.

  • Missing Cards Table: This table displays the cards missing from a pack that has already been seen.

    • The user's chosen card will have an asterisk next to the name.
    • You can hide this feature by deselecting Enable Missing Cards in the Settings window

  • Draft Stats Table: This table lists the card distribution and total for creatures, noncreatures, and all cards that were taken during the draft.

    • The numbered columns represent the cost of the card (cmc).
    • You can hide this feature by deselecting Enable Draft Stats in the Settings window

Menu Features

Settings_Dark Settings_Colors

  • Read Draft Logs: Read the log file from a draft by selecting File->Open. Select a file that has the following naming scheme DraftLog_<Set>_<Draft Type>_<Draft_ID>.log file to read the file.

  • Download Set Data: Get to the Add Sets window by selecting Data->Add Sets. Enter the set information and click on the ADD SET button to begin downloading the set data.

    • The download can take several minutes.
    • 17Lands will timeout the request if too many requests are made within a short period of time.

  • List Taken Cards: Get to the Taken Cards window by selecting Cards->Taken Cards.

    • This table lists the cards that were taken by the user throughout the draft.

  • List Suggested Decks: Get to the Suggested Decks window by selecting Cards->Suggest Decks.

    • This table displays a 40-card deck created by the application using the cards you have obtained during the event. In certain cases, multiple decks may be shown if the application is able to create them.
    • It is possible for the application to be unable to generate any decks if this option is selected before the event concludes or if an insufficient number of creatures were chosen.
      • The application constructs decks according to various criteria, including the Games in Hand Win Rate of each card. The rating indicated represents the combined Games in Hand Win Rate of all cards in the deck.

  • Card Compare: Get to the Card Compare window by selecting Cards->Compare Cards. You will be able to compare the cards you have entered using this window.

    • This feature can be used to quickly compare cards for P1P1 of the Premier and Traditional drafts.

Additional Features

  • Hotkey: The user can use the hotkey CTRL+G to toggle between minimizing and maximizing the main application window.

    • This feature doesn't work on Mac.
    • You need to run the executable as an administrator for this feature to work in Arena.

  • Top-Level Window: The main application window, and subsequent windows, will act as an overlay and remain above all other windows, including the Arena screen.

  • Tier List: A tier list can be added to the drop-downs by following the instructions in tier list README.

  • Card Tooltips: Clicking on any card row will display a tooltip that contains the card images (back and front) and the 17Lands data.

Settings

  • Columns 2-7: Set the field for columns 2-7 of the pack table, missing table, and compare table.

  • Deck Filter Format: Switch the Deck Filter to either the color permutations (i.e., UB, BG, WUG, etc.) or the guild/shard/clan names (i.e., Dimir, Golgari, Bant, etc.).

  • Win Rate Format: Switch the results for the win rate fields (such as GIHWR, OHWR, GPWR, etc.) to percentage (17Lands values), ratings (5-point rating scale) or grades (A+ to F). See the Win Rate Ratings section for more details.

  • Enable Current Draft Display: Toggle the visibility of the Current Draft indicator in the main window.

  • Enable Data Source Options: Toggle the visibility of the Data Source drop-down in the main window.

  • Enable Deck Filter Options: Toggle the visibility of the Deck Filter drop-down in the main window.

  • Enable Refresh Button: Toggle the visibility of the Refresh button drop-down in the main window.

  • Enable Row Colors: Sets the row color to the card color.

  • Enable Color Identity: Once activated, the Colors field will showcase the mana symbols representing both the mana cost and abilities of a card, such as kicker, activated abilities, and more.

  • Enable Draft Stats: Displays the draft stats table and drop-down in the main window.

  • Enable Missing Cards: Displays the missing cards table in the main window.

  • Enable Highest Rated: Enables the highest rated card logic for the Auto filter. See the auto highest rating note in the card logic section.

  • Enable Bayesian Average: Enables the Bayesian average logic for all win rate fields. See the Bayesian average note in the card logic section.

  • Enable Draft Log: Records the draft in a log file within the ./Logs folder.

  • UI Size: Increase or decrease the size of the application text and images.

Card Logic

  • Win Rate Grades: Using the non-zero GIHWR values, the application will calculate the mean and standard deviation. Based on the number of standard deviations from the mean, it will then assign a letter grade.
    • Example: If the mean win rate for the set is 56.8% and the standard deviation is 4.68, then a card with a win rate of 62% will have a letter grade of B+ since it's between 1 standard deviation (56.8 + 1 * 4.68 = 61.48%) and 1.33 standard deviations (56.8 + 1.33 * 4.68 = 63.02%) from the mean (see the table below).
Letter Grade Standard Deviations
A+ >= 2.00
A >= 1.67
A- >= 1.33
B+ >= 1.00
B >= 0.67
B- >= 0.33
C+ >= 0
C >= -0.33
C- >= -0.67
D+ >= -1.00
D >= -1.33
D- >= -1.67
F < -1.67

  • Win Rate Ratings: The application will calculate the mean and standard deviation to identify an upper and lower limit (-1.67 to 2.00 standard deviations from the mean) and perform the following calculation to determine a card's rating: ((card_gihwr - lower_limit) / (upper_limit - lower_limit)) * 5.0

    • Example: If the calculated mean and standard deviation for a set are 56.8% and 4.68, then the upper limit will be 56.8 + 2.00 * 4.68 = 66.16%, the lower limit will be 56.8 - 1.67 * 4.68 = 48.98%, and the resulting rating for a card with a win rate of 62% will be (((62 - 48.98) / (66.16 - 48.98)) * 5.0 = 3.7)

  • Bayesian Average: When this feature is activated, the win rate data is subjected to a Bayesian average calculation that takes into account specific assumptions (e.g., an anticipated range of 40-60% with a mean of 50%). This Bayesian average considers both prior assumptions and observed data, providing a more reliable estimation of the win rate, particularly in cases where sample sizes are small (less than 200 samples) or data availability is limited. A comprehensive explanation can be found here.

    • Enabled: The application will apply this calculation to all win rate data. However, the adjustment made by the calculation will gradually diminish as the sample count, such as the number of games in hand for the Games in Hand Win Rate, reaches 200. As the sample size increases, the Bayesian average will be more influenced by the observed data rather than the prior assumptions, resulting in a more reliable estimation of the win rate.
    • Disabled: The application will not apply this calculation to the win rate data.

  • Auto Highest Rating: If the Auto filter is set, and the user has taken at least 16 cards, then the application will try and determine the leading color combination from the taken cards. If the tool is unable to identify a definitive leading color pair, then it will display the highest win rate of the top two color combinations for each win rate field (e.g., GIHWR, OHWR, etc.). The filter label will display both color combinations separated by a slash (e.g., Auto (WB/UBG)).

    • Example: If the user has taken primarily black, blue, and green cards, and Generous Visitor has a BG win rate of 66% and a UB rating of 15%, then the displayed win rate will be 66%.

  • Deck Suggester: The deck suggester will create multiple decks (Aggro, Mid, and Control) for each viable color combination using a pool of cards with the highest win rates. It will follow generic deck building requirements. The suggester will assess and rate each deck, selecting the highest-rated one for each viable color combination. The deck suggester will NOT identify card synergies and build an intentionally synergistic deck.

    • Deck Building Requirements:
      • Aggro Deck:
        • The deck must have a minimum of 9 creatures and should have no less than 17 creatures.
        • The deck should include a minimum of two 1-drops, five 2-drops, and three 3-drops.
        • The average CMC (Converted Mana Cost) of all of the creatures must be 2.40 or less.
        • The deck has 16 lands.
      • Mid Deck:
        • The deck must have a minimum of 9 creatures and should have no less than 15 creatures.
        • The deck should include a minimum of four 2-drops, three 3-drops, two 4-drops, and one 5-drop.
        • The average CMC of all of the creatures must be 3.04 or less.
        • The deck has 17 lands.
      • Control Deck:
        • The deck must have a minimum of 9 creatures and should have no less than 10 creatures.
        • The deck should include a minimum of three 2-drops, two 3-drops, two 4-drops, and one 5-drop.
        • The average CMC of all of the creatures must be 3.68 or less.
        • The deck has 18 lands.
    • Notes:
      • The CMC average and land requirements were derived from this article.
      • The deck distribution and CMC requirements may occasionally lead to the inclusion of cards that have lower performance or are considered less effective. Example: If the user possesses a pool of white and blue cards and the available 3-drops are Acquisition Octopus (53.7% win rate for WU) and Guardians of Oboro (50.7% win rate for WU), the deck suggester will include both of these cards to meet the 3-drop requirement for each deck archetype.
      • The rating is determined by calculating the combined GIHWR of all the cards and then subtracting penalties for not meeting the deck requirements.
      • The NEO creature sagas count as creatures.

Troubleshooting

  • Some cards are missing from the Taken Cards window: Due to Arena creating a new player log after every restart, the application cannot track cards that were picked and seen prior to a restart. However, players who engage in drafting sessions spanning multiple days or sessions can still utilize this tool to access the current pack data. It should be noted that this application may not have access to information regarding previous packs and picks, resulting in some missing data.

  • The application can't generate set or debug files: Windows users might need to run the application as an administrator if the application is installed in directory with restricted write access.

  • My sealed card pool is missing after restarting Arena: Arena creates a new player log after every restart, so you will need to open up your sealed event session log by clicking File->Open and selecting the DraftLog_<Set>_Sealed file if you want to see your sealed card pool. Keep in mind that opening a log file will prevent the application from reading the Arena player log. Therefore, if you wish to initiate a new Arena event, you'll need to restart the application.

  • The tables are displaying a win rate of 0% or NA: The application will display a card win rate value of 0% or NA if that win rate field has fewer than 200 samples (e.g., GIHWR will be 0% or NA if the number of games in hand is less than 200). Users should consider using the premier draft dataset, enabling the Bayesian average feature, or downloading a tier list for events that have a low player count.

  • CTRL+G doesn't do anything: If you're a Mac user, then this shortcut isn't available. If you're a Windows user, then you need to run the application as an administrator.

  • The set download process is taking 5+ minutes and I'm seeing Collecting 17Lands Data - Request Failed multiple times: If you attempt to download too many sets within a short period of time, 17Lands will impose rate-limiting on your connection. Therefore, when downloading multiple sets, it is advisable to wait at least 10 minutes between each set.