Action Cubes

Each player has 8 action cubes for the whole game. You place one per turn on your mat, and it slides to the far left of that row as it activates brown powers — it doesn't sit in and block the slot it took a reward from. At the end of each round every cube on your mat returns to your own supply — except the 1 you place on the goal board, which is gone for good and is why each round has 1 fewer turn than the last.