Propagate Step
The Propagate Step is a Turn step that happens right after the Play Step.
During this step, players can propagate symbols through their board of ingredients cards that they have slotted.
For each ingredient card in play that the player wishes to propagate, they will process each symbol through their machine following any desired path until they reach their Cauldron.
Symbols that reach broken paths are voided. Otherwise, symbols cannot be voided and must be propagated all the way (unless a machine voids them).
During propagation symbols can be transformed by the tiles they encounter. For example, a ⬟1 symbol passing through a Catalyst Injector could become a ⬟3.
Players do not need to propagate every ingredient, as they can be saved for the next turn (unless the have the Spoils trait). However, once they decide to propagate a card, they must propagate all symbols on it (unless they have the Fractured trait).
After each player no longer wishes to propagate any more cards or symbols, they can proceed to the Brew Step.