If I attack a battlefield and my opponent plays Hidden Blade, can they play another card in a row after I pass priority?

Ruling: Yes, both players must pass priority to move on. After Hidden Blade resolves and you pass, your opponent can play another card.

Sequence:

• Opponent plays Hidden Blade in response to your attack
• You pass priority
• Opponent can now play another card
• Both players must pass priority consecutively to move forward

Nuances:

• If the opponent passed priority to you first and you pass back, they cannot play a reaction to their own Hidden Blade at that point
• A player can play multiple reactions in a row to an existing chain before passing
• When reacting to an existing chain, you can play as many reactions as you want consecutively, then pass
• After a chain resolves completely, priority automatically passes to the other player, but you can play if they pass