How does focus and priority work after the initial chain in a showdown?

Ruling: After the initial chain (consisting of "When I Attack" and "When I Defend" triggers) resolves in a showdown, the attacker retains focus and priority. After any subsequent chain resolves during the showdown, focus passes to the next player.

Sequence:

• Showdown begins and initial chain is created ("When I Attack" triggers, then "When I Defend" triggers)
• Initial chain resolves
• Attacker retains focus and priority (exception to normal focus passing)
• Attacker may play action/reaction cards or pass
• After this next chain resolves, focus passes to the opponent
• Focus continues passing between players after each chain resolves for the remainder of the showdown

Nuances:

• The initial chain is unique - it's the only chain in a showdown where focus does not pass after resolution
• Focus and priority come as a "bundle deal" - you cannot have one without the other
• Players should clearly announce whether they are playing a card or passing focus to avoid confusion