A theorycrafting sandbox for Lorcana

Try every line. Branch any turn.

Play or replay any match between two decks turn by turn, rewind to any moment, branch a new timeline, reshuffle, or hot-swap cards to see how a different line would have played out.

A companion to your favorite simulator. Paste a match log from Duels.ink and the whole game shows up as a multiverse tree, ready to explore.

  • 01 Manual sandbox
  • 02 Rewind and branch
  • 03 Draw probability displays
One real match · every line tried
·
P1 lore
P2 lore
Every saved node · the line you're on in signal Turn
Lore along the line played
    01 Live in the Dojo

    A real match, mid-turn.

    Two decks loaded, a turn-by-turn log, draw probabilities shown. The multiverse of possible timelines is just one keystroke away. This is the Set 13 demo at turn 16, as the Dojo shows it today.

    app · v3.4.6 · Set 13 example · turn 16
    The Practice Dojo by day: a Lorcana match at turn 16 with the players, win-probability meters, card details, log and turn note in the left rail, both halves of the board in the black well, and draw odds on the right The same match in the Kiln night theme: warm black chassis, the board in the well, lore numerals in orange
    1. 01

      Draw odds

      Every card left in your deck, with the chance to draw it on the next draw and the ones after. Fully customizable: 3, 5, X draws away

    2. 02

      Card details on hover

      Hover any card for the full card info

    3. 03

      Turn-by-turn log

      Every move is logged, and your turn notes (in Markdown) sit right in the log.

    4. 04

      Drag and drop anywhere

      Move cards between hand, field, ink and discard. Nothing blocks you.

    5. 05

      Challenge Mode

      Hit C to enter challenge mode. Check at a glance what are the trades looking like.

    02 On your phone

    The whole Dojo, in your pocket.

    Same board, same multiverse, built for thumbs. Every card opens a drawer of keys, your hand sits under the board, and the turn's big buttons are always in reach. This is the same match at turn 16.

    The Practice Dojo on a phone: both halves of the board in the well, each player's lore, ink and deck in one row, and the hand tray with Quest and End turn at the bottom The same phone board in the Kiln night theme
    Dumbo tapped on a phone: the card drawer with the card's full text, damage segments, and keys for Challenge, Quest, Exert, Banish and where to move it The same card drawer in the Kiln night theme
    1. 01

      A drawer of keys for every card

      Tap any card for its full text, then set damage, Challenge, Quest, Exert, Banish, or move it to hand, deck or under another card.

    2. 02

      Your hand, one tap away

      The hand peeks from the bottom of the board. Tap a card to open it in the same drawer, and swipe through the rest.

    3. 03

      Lore, ink and deck in one row

      Each player gets one strip: lore you can nudge, the ink you have left this turn, the discard and the deck.

    4. 04

      Quest and End turn under your thumb

      The turn's two big buttons sit in the hand tray. The multiverse is in the top bar, as on desktop.

    03 Import

    Paste a Duels.ink log. Get the whole match back.

    Export the match log from your Duels.ink game and paste it into the Dojo. Or import a Duels.ink replay file for max information. Every turn becomes a node in the multiverse tree, with hands, ink, board and cards played rebuilt for you.

    Paste a decklist or a Duels.ink game.
    
                  
    Nothing to paste? Try an example:
    Duels.ink log
    Every turn becomes a node in the multiverse. Cards the log never names stay unknown until you fill them in.
    Study this game

    Imported turns

    1. 01

      Both log formats, and replays

      Older “Player 1 / Player 2” logs and Duels.ink's current “You / Opponent” logs both import, and so do replay files.

    2. 02

      It reads what you paste

      A decklist, a log, a replay or a saved session: the readout says what it found and offers the next step.

    3. 03

      Branch from any turn

      Once imported, every turn is a save point. Jump back to turn 3 and try the line you wish you'd played. Hot-swap a card to try out a different line. The original game stays intact.

    04 Multiverse

    Every turn is a save point. Every save point is a branch.

    The Dojo snapshots the game at the start of every turn. Rewind to turn 4, play your hand differently, and the original line stays alive next to the new one, in one tree you can pan, zoom and walk with the keyboard. This is the whole Set 13 demo: click a node.

    Multiverse

    Click a node to select it · Drag to pan · Ctrl + scroll to zoom · Arrow keys walk the tree
    Player 1 · Amber/Amethyst Player 2 · Amber/Emerald
    1. 01

      Rewind, instantly

      Every saved turn is a complete snapshot of the game. Jump back to turn 2 from turn 9: hands, ink, board and log all restored exactly.

    2. 02

      Branch without losing

      When you jump back, the line you left is saved to a side branch. Compare both outcomes side by side.

    3. 03

      Change your deck order or reshuffle and redraw

      What if I had drawn a different card? Reshuffle from any node to see what a different draw does to the same matchup.

    05 What's in the box

    A real sandbox, not a referee.

    The Dojo never blocks you. Play an illegal move if it surfaces a line worth checking. The point is theorycraft, not enforcement.

    1. 01

      Multiverse tree

      A zoomable, draggable, keyboard-navigable canvas of every branch you've explored. Click a node and you're there.

      Core
    2. 02

      Auto-save every turn

      Switch it on and the Dojo saves the start of every turn for you. Name the saves and comment them in Markdown.

      Save
    3. 03

      Hot-swap any card

      Drag cards between hand, field, ink and discard. Substitute a card mid-line, or add one that isn't in your deck to test it.

      Manual
    4. 04

      Reshuffle the unknown

      Lock the board, reshuffle the deck, redraw. Test the same position against a fresh top of deck without losing the line.

      Variance
    5. 05

      Live draw odds

      For every card in your deck: how many copies are left, and the chance of drawing it on the next draw or within the next few.

      Odds
    6. 06

      Import Duels.ink games

      Paste a match log or drop a replay file and the whole game lands in the multiverse, one node per turn.

      Import
    7. 07

      Library shelves and share links

      Decks and sessions stay on this device. Sign in to keep them in your account too, and the Library shows at a glance what lives where. Share a deck or a whole multiverse with a short link.

      Library
    8. 08

      Dark Mode?

      Obviously...

      Theme
    Built for the keyboard ←→ Walk the tree M Multiverse tree T Save the turn you’re in Q Quest all ready Space End turn C Challenge mode
    06 How it works

    From two decklists to a mapped multiverse in five minutes.

    Step 01

    Load two decks

    Paste a decklist, pick a saved or default deck, or leave a seat empty for 60 random cards.

    Step 02

    Play turn by turn

    Drag cards. Quest. Challenge. Ink. The Dojo logs everything and moves the win-probability meters as the board shifts.

    Step 03

    Branch the multiverse

    Press M. Click any earlier turn. Branch. Play a different line, and compare the outcomes side by side.

    Runs in the browser · no install · no account needed

    Revisit your matches. Explore every line.

    A companion to your favorite Lorcana simulator. Open the Dojo. Load two decks. Play. Rewind. Branch. Repeat.

    Open Practice Dojo
    v3.4.6 · your sessions stay on this device