After a Duel Ends + When Exactly May I Play a Reaction To This Trigger

Agent006 — Today at 7:29 PM
Whenever there is a reaction that triggers: “After a Duel Ends”, the precise timing of that reaction would be playable after the Round Ends step in the below framework for repeating rounds, provided, that that no player has threat remaining in their pool correct?

Dragonhatter — Today at 7:33 PM Provided there is no threat remaining yes

_Answered in Discord:_Discord