How does the chain work when multiple reactions are played, and how does priority work during chain building and resolution?

Ruling: When building a chain, players alternate priority but a player can play multiple reactions while holding priority before passing. Priority passes voluntarily during chain building, never automatically. During resolution, after each link resolves, the owner of the next ability gains priority before that ability resolves.

Sequence:

• Player A plays an Action and can hold priority to play reactions, then passes priority
• Player B gains priority and can play multiple reactions (like Stupify 1, then Stupify 2) before passing priority back
• Once both players pass priority consecutively, the chain begins resolving
• Chain resolves last-in-first-out (Stupify 2, then Stupify 1, then Action)
• After each link resolves during resolution, the owner of the next ability gains priority and can play reactions or pass before their ability resolves

Nuances:

• Priority and Focus are different mechanics - Priority passes voluntarily during chain building, while Focus passes automatically
• A player cannot interrupt another player while that player holds priority
• After chain resolution, if the chain is empty during a showdown, focus passes to the next player; if empty outside showdown, focus stays with current turn player
• A player can respond to their own spells by holding priority