After a chain finishes resolving (whether started by attacker or defender), who gets focus/priority first?

Ruling: Focus always starts with the attacker at the beginning of combat, then bounces back and forth in player order as chains fully resolve.

Sequence:

• If attacker plays an Action and the chain resolves, defender gets focus first
• If defender passes, attacker gets focus
• If attacker passes, proceed to damage
• If defender plays an Action and the chain resolves, attacker gets focus first