When Combat opens, it either opens with a Combat Showdown, or the current Showdown becomes a Combat Showdown.
§ 459.2 Core Rules PDF (officieel)
§ 459 Step 1: The Combat Showdown Step
§ 459 Step 1: The Combat Showdown Step
When Combat opens, it either opens with a Combat Showdown, or the current Showdown becomes a Combat Showdown.