Can you hold priority in Riftbound to play multiple Reaction spells before passing priority to your opponent, and what happens after both players pass priority during chain resolution?

Ruling: When you gain priority, you can hold it and play as many Reaction spells as you want before choosing to pass priority to your opponent. After each chain link resolves, the player controlling the next item on the chain gains priority, and all relevant players must pass priority sequentially before that next item can resolve.

Sequence:

• When you gain priority, you may play multiple Reactions before passing
• Once you pass priority, your opponent gains priority
• If all relevant players pass priority sequentially without adding anything, the most recent chain link resolves
• After a chain link resolves, the player controlling the next item on the chain gains priority
• All players must pass priority again before the next chain link can resolve
• This process repeats for each item on the chain

Nuances:

• Once you pass priority after playing a Reaction, if your opponent also passes, that Reaction resolves before you can add another one
• Permanents are an exception - no player gains priority when they are played
• During a Showdown, focus passes after the last item on the chain resolves, not after each chain link