When a chain that started with an action spell ends, does priority automatically pass to the next player, or can the active player hold priority and play more action spells?

Ruling: When a chain that started with an action spell ends, priority automatically passes to the next player. The active player cannot hold priority to play additional action spells after the chain resolves.

Nuances:

• You can keep adding spells to the chain after items resolve, but priority goes to the player whose item is next on the chain, not in turn order
• Focus automatically passes when the chain resolves