After Player A attacks and passes, Player B uses an action during defend focus, and Player A doesn't react - does it go straight to combat phase or does Player A get focus again?

Ruling: Player A gets focus again after Player B's action resolves. The action phase continues with focus alternating until all relevant players have had focus and passed without playing anything.

Sequence:

• Player A attacks (passes focus without using action)
• Player B defends (uses an action)
• Player A doesn't react (chain closes, action resolves)
• Player A gets focus again
• This repeats until all players pass consecutively without playing anything

Nuances:

• When a player passes focus without playing anything, there is no chain to close at that point