What's the functional difference in Embargo?
"Embargo was changed so each Curse gained per token on a pile is a separate event, rather than gaining all of them at once."
Is this actually a functional difference? It was ruled with first edition wording that the gains still happen one at a time (if there was only 1 Curse left, you could still reveal Trader twice to gain 2 Silvers). Is there another on-Gain effect that could come into play here?
Trying to answer my own question here... maybe if you have Hoard in play, and Watchtower in hand? Under new wording, if you buy a Province that has 2 Embargo tokens on it, you trigger 3 separate "when buy" events, that gain you a Curse, Curse, Gold (all before you gain the Province). You can choose the order you gain those 3 things, meaning you can top-deck them in any order.
Under old wording, you trigger 2 separate when-buy events, gain a Gold, and gain 2 Curses (which are gained 1 at a time). If you start resolving the "gain 2 Curses", you can't gain the Gold until you have gained both Curses, so you cannot make the top of your deck contain Curse, Gold, Curse in that order.