The player wants to make a different decision for playing a unit or gear immediately after playing it to a location. Example: 1. A player plays Traveling Merchant to Reaver’s Row. They immediately change their mind and choose to play it to their base instead, or choose not to play it at all.
§ 509.4.b Tournament Rules PDF (officieel)
§ 509 Gameplay Decisions
§ 509.4 At high OPL, a player can reverse their most recent action and make a different decision for that action (including not taking it at all) if no new action has been taken by either player and the following is true: