Brew City Showdown - Spring 2026: Base–Fossil
Organized by The Mana Vault MKE
Base–Fossil format

OS Pokemon Showdown Banner


Join us at The Mana Vault on Saturday, May 23rd and Sunday, May 24th for an entire weekend of exciting retro Pokémon TCG events! Friday will feature Free Play, drafting, trades and vibing for those in town early!


Players should report to the venue for check-in before 11:50 AM on both Saturday and Sunday!


Address and Venue Information

The Mana Vault MKE
3807 S. Packard Ave.
St. Francis, WI 53235

Just minutes from Milwaukee's Mitchell International Airport and hotels, our location is convenient for travelers. Our store is also attached to a brewery & restaurant, making meals a breeze! Here are some hotel recommendations nearest the airport and the venue:

$$ Courtyard by Marriot Milwaukee
$ Clarion Pointe Airport
$$ Hyatt Place Milwaukee Airport

Entry into these events will be taken on site. To prevent tournament delays, please be sure to have your decklist ready and submitted through this tournament page prior to check-in!

If you have any questions at all or need help with something, please reach out to us!

E-mail: themanavaultmke@gmail.com
Phone: (414) 763-9111
Discord: https://tr.ee/QoGAKqkksp (#Pokemon-Center)


You can also join the Official Pokemon 1999 Discord here to get in contact with other community members attending the event!

Tournament Schedule

Friday, May 22nd: Free Play / Base–Fossil Draft / Trade Night

Stop in to play some casual games, trade, and hang out with the community!

Saturday, May 23rd: Base–Fossil Tournament

Entry Fee: $30 (or $50 for a Dual Event Pass) paid at check-in

This tournament will be streamed Live on Twitch!

11am–11:59am: Player check-in (All players must be preregistered on this page with a deck list submitted)
12pm–5:00pm: Swiss Rounds (Best-of-1 with a 40-minute +3 turn time limit)
5:30pm–10:00pm: Top 8 Single Elimination (Best-of-3 with a 90-minute +3 turn time limit)

Players will play 7 rounds of Swiss (adjusted for attendance.)

New to Base–Fossil or need a refresher? Check out this article written by 3-time World Champion Jason Klaczynski.

This tournament is proxy friendly! For more info on this, scroll down to Decklist Submission & Contact.

Legal Sets

  • Base Set (BS)
  • jungle-symbol Jungle (JU)
  • fossil-symbol.png Fossil (FO)
  • promo-symbol Wizards Black Star Promos 1–9 (WBSP)
  • promo-symbol Base Set 2 (BS2)

Sunday, May 24th: Prop 15/3

Entry Fee: $30 (or $50 for a Dual Event Pass) paid at check-in

Note: Each event has a separate registration page. To register for the Prop 15/3 event, click here.

11am–11:59am: Player check-in (All players must be preregistered on this page with a deck list submitted)
12pm–3:30pm: Swiss Rounds (Best-of-1 with a 40-minute +3 turn time limit)
4pm–8:00pm: Top 8 Single Elimination (Best-of-3 with a 90-minute +3 turn time limit)

Players will play 5 rounds of Swiss (adjusted for attendance.)

New to Prop 15/3 or need a refresher? Check out this article written by 3-time World Champion Jason Klaczynski.

This tournament is proxy friendly! For more info on this, scroll down to Decklist Submission & Contact.

Legal Sets

  • Base Set
  • jungle-symbol Jungle
  • fossil-symbol.png Fossil
  • Team Rocket
  • promo-symbol Gym Heroes
  • promo-symbol Gym Challenge
  • promo-symbol Base Set 2
  • promo-symbol Wizards Black Star Promos 1–24

The Prop 15/3 format limits Trainers in each players' deck to 15. Players are also limited to a maximum of three of any card with the same name (excluding Basic Energy). (This limit of 3 applies to Pokémon and Special Energy, not just Trainers.)

Guaranteed Prizes

Day 1 Guaranteed Prizing: Base–Fossil Tournament

  • 1st Place: $300 store credit
  • 2nd Place: $150 store credit
  • Top 4: $100 store credit
  • Top 8: $50 store credit

Day 2 Guaranteed Prizing: Prop 15/3 Tournament

  • 1st Place: $200 store credit
  • 2nd Place: $100 store credit
  • Top 4: $60 store credit
  • Top 8: $30 store credit

Plus additional Door Prizes, that scale with attendance and will be raffled among all participants!

Players may also elect to receive 80% of the value of their store credit prizes in cash!

Rules

  • Each of these events will use the rules of the time period. For a refresher of the differences between the Wizards era and modern Pokémon, click here.
  • This event will play with corrected versions (errata) of all known mistranslated cards. For a list of all Wizards era erratas, click here.
  • All language cards are permitted as long as the cards were also printed in English, and color proxies are allowed (more info below in Decklist Submission & Contact).
  • After time has expired in the round, the current player will finish their turn. Players will then play three more turns. If, by then, neither player has won the match, the player with fewer Prize cards remaining is the winner. If players are tied in Prizes, the game will continue in Sudden Death, with the next Prize card drawn determining the winner. (In Best-of-3, a tied game will only continue if the match score is also tied.)
  • In Top 8, the higher-seeded player will play first in Game 1. In the subsequent games, the loser of the previous game will play first.
  • Late players will have 5 minutes to arrive to their match before forfeiting, but will lose any unfinished match after time +3 turns expires regardless of game score and prize count.
  • Judges will handle any disputes, including resolving any illegal gameplay, in a way that is fair to both players. Judges will also ensure players play at a brisk pace that allows for most matches to finish in the allotted time limits.

  • Decklist Submission & Contact

    If you have any questions at all or need help with something, please reach out to us!

    E-mail: themanavaultmke@gmail.com
    Phone: (414) 763-9111
    Discord: https://tr.ee/QoGAKqkksp (#Pokemon-Center)

    You can also join the Official Pokemon 1999 Discord here to get in contact with other community members attending the event!

    Decklist Submission

    Decklists are REQUIRED for these events, and must be submitted at the top of this page once players have registered for the tournament.

    Limitless has a super user-friendly Deck Builder for players to use with a built in search tool! Click here to be redirected to that page! Keep reading for more instruction on how to use this resource to create and submit a decklist.

    • 1. Go to the search bar and type in the card name, then locate the correct version.
    • 2. Click on the card to add, then use the + and buttons to adjust the desired quantity.
    • 3. Once that is done X out of the card, and repeat steps 1-3 until all cards have been entered.
    • Note: Limitless defaults Computer Search as restricted to 1 copy. If and when adding this card, first click the 3-dot drop down menu and make sure "Enforce Limits" is toggled off.
    • 4. Once all cards have been added according to the desired specifications of the deck, click Share > Copy as Text.
    • 5. Navigate back to the top of the Tournament Page (this page), and click Submit Decklist.
    • 6. A submission form should pop up, paste the copied decklist there and click Submit. That's it!

    If any errors are encountered with certain cards, or if entering decklists manually, use the abbreviations below to make corrections in the submission form page. The format for this is: X PokemonName Set X, where X is the number of copies and collector number respectively.

    Examples:
    3 Rocket's Zapdos G2 15
    2 Chansey BS 3
    1 Item Finder BS 74

    Set Abbreviations

  • Base Set (BS)
  • jungle-symbol Jungle (JU)
  • fossil-symbol.png Fossil (FO)
  • promo-symbol Wizards Black Star Promos (WBSP)
  • promo-symbol Base Set 2 (BS2)
  • promo-symbol Team Rocket (TR)
  • promo-symbol Gym Heroes (G1)
  • promo-symbol Gym Challenge (G2)

  • Proxy Rules

  • Proxies must be indistinguishable from the other cards as parts of your library while sleeved. (Ideally you should not be able to tell by the sleeve openings or thickness which cards are proxies and which are not).

  • Proxies must be original English prints with all appropriate text and typing. Please no hand-written proxies in your decks. Everyone must be able to readily recognize the cards for what they represent and read the words on them.

  • Players may choose to print proxies on regular printer paper. These proxies must be in full color, cut to the approximate size of Standard Pokémon cards, and placed in front of a real Pokémon card inside the sleeve. See the depiction below.

  • Click here to be directed to a page for selecting and printing proxies.

    promo-symbol

    Tournament Structure

    Swiss
    7 Swiss Rounds - BO1
    untimed rounds
    no round check-in
    8 players advance to the next phase
    Top 8 Cut
    Single Elimination Bracket - BO3
    untimed matches
    no match check-in
    Wins are worth 1 match point, ties 0