Your opponent chooses one non-villain character die. All other non-villain character dice cannot block this turn.
Does the opponent choose the non-villain die when the action is played or do they wait until blockers are declared?
If chosen immediately, what happens if the opponent makes a different non-villain character die a villain? Can this newly annointed villain block or does the text of Villainous Pact apply immediately to prevent all other non-villains from blocking regardless of later effects?
Example, Ebony Maw
Global: Pay Fist Mask. Target character gains the villain affiliation until the end of the turn.