This explanation is wrong.  The "Destroyed:" abilities do not happen one at a time.  There is no stack in Keyforge, like there is in MTG and the rule book makes absolutely no mention that abilities trigger one at a time.  The only time the Keyforge rule book says that something happens one at a time is when you are discarding multiple cards from your hand.  The rulebook even explicitly says they are destroyed simultaneously (and therefore their "Destroyed:" abilities happen simultaneously.) The