During a showdown with attacker triggers (like Yasuo), can the attacker play action cards before triggers resolve, and who gets focus/priority first after the initial trigger chain resolves?

Ruling: You cannot play action cards or activate action abilities until the chain is empty. After the initial chain of attacker/defender triggers resolves, the attacker retains focus and has the first opportunity to play action speed cards in the showdown.

Sequence:

• Attacker triggers go on the stack first, then defender triggers
• The initial chain must fully resolve before any action cards can be played
• After only the initial chain resolves, the attacker retains focus (special exception)
• The attacker gets the first focus in the showdown

Nuances:

• The attacker retaining focus only applies to the initial chain of triggers at the start of showdown, not subsequent chains during the showdown