When the chain is resolving in Riftbound, can players play reactions between each spell resolution, or does the entire chain resolve at once?

Ruling: After both players pass priority, each chain item resolves one at a time. Before each chain item resolves, there is another round of priority where players can add reactions, starting with the owner of the next chain item to resolve.

Sequence:

• Both players pass priority on the current top chain item
• Top chain item resolves
• Priority opens again for reactions to the next chain item (starting with its owner)
• Both players must pass priority again
• Next chain item resolves
• Process repeats until chain is empty
• Once the whole chain finishes, Focus passes automatically

Nuances:

• A player does not have to pass priority after playing a card to the chain - they can play multiple cards in succession before passing
• Cards only resolve after both players pass priority, so effects like drawing cards happen only after resolution (players sometimes jump the gun on their draws before cards actually resolve)