How exactly does the chain resolve in Riftbound? After the last spell is cast, does it resolve immediately, or does priority pass to allow reaction spells?

Ruling: After an effect resolves, the player who controls the topmost effect gets priority and can play another reaction. Once they pass, the opponent can also play a reaction. This continues until both players pass consecutively.

Sequence:

• An effect resolves from the chain
• The player controlling the topmost remaining effect gets priority
• That player can play a reaction or pass
• If they pass, the opponent gets priority
• If both players pass consecutively, the next effect resolves
• Repeat until the chain is empty

Nuances:

• Moving the base (like withdrawing during combat) needs to be added to the chain and resolved, it cannot be done instantly
• Any ability with "When" or "At" followed by an event description is a triggered ability that uses the chain with full priority passing