342.1. Showdowns that open as a result of Combat may have an Initial Chain of Triggered Abilities.
342.1.a. These Triggered Abilities should be put on the chain first by the player with Focus , then proceeding with players without the Defender designation in Turn Order. Finally, the player with the Defender designation will add their Triggered Abilities , if any, to the Chain.
342.1.b. If there are no such Triggered Abilities present during a Combat -initiated Showdown then no Initial Chain is created, but the Showdown will still proceed.