IRL 4P game. I was invited to a game night with players who have <50 games experience, so they're still learning. I have all the cards.
I always brief them on all of the cards before the veto round, explaining all of the different strategies possible. We had a very interesting set of cards, but sadly, they decided it was just too much to keep track of (all they are comfortable doing are weak engines that single-province or double-province if they get lucky.)
I've played megaturns against them with Highway or HoP. I've played multi-Province engines. I've played Triple-Gear BM. I've played Distand Lands rushes. I've played decks designed to maximize landmark points (boy are there some unskippable landmarks) and I've played brutal attack-machines like a deck-drawing Catapult engine (a better curser than I expected) and the classic Champion/Page/Page/Page/Warrior/Warrior/Warrior/Sorry your deck is mostly gone sequence. I've always told them it was a thing ahead of time.
So...the kingdom. I pointed out that Feodum was on the board and that Page upgraded to Treasure Hunter could gain a ton of Silver and make a Feodum rush possible. They vetoed Page (see above, mostly.) There was Counterfeit in the kingdom, and Capital. I pointed out that if you counterfeit a Capital, you get $12, two buys and no debt! Counterfeit two and you get $26 and a bunch of buys; enough for two Provinces and two Capitals, or three Provinces on the last turn. They vetoed Capital. Nothing tricky or interesting could be allowed to stand. I did explain that Rebuild was a monolithic strategy and how to play it (buy a few and hammer the Duchies) but no one vetoed it. Rebuild it is, then. Especially because the only draw was Envoy, making an engine extremely difficult.
The Event was Banquet. Yeah, the copper hurts, but opening with two Rebuilds is nice, and then Counterfeit to help hit $5 and trim some copper. Also, buying Duchies with a hand of 5 copper is a thing.
But I like to try to show them new ways to win when I can. I looked hard at the board and thought...when am I going to get this chance again? I had to try it.
Banquet more Rebuilds. On $4, I bought a Stonemason and two Settlers. Cute in a deck full of stupid Copper. Bought some Duchies and rebuilt them into Provinces like you're supposed to, but...
Stonemason an Estate into two Coppers. They looked a bit confused. I had Counterfeits, right?
Counterfeit for $4 and two buys. Banquet a Rebuild, use the extra buy on a Copper. Now they were super confused.
Counterfeit for $6 and two buys. Banquet a Copper, Banquet another Copper, gaining 6 Coppers altogether. Two other piles were already empty.
My left-hand opponent put down his cards and said "Wait...are you....?"
then he looked down at the Landmark.
Tower.
It was too late. I piled out the Copper on my next turn. Ended up with 20+ Coppers.
I swear I warned them. I pointed out that with Feodum and Treasure Hunter, the game could have piled out Silvers for massive Tower points. I even mentioned the Banquet/Copper possibility, but until you see it with your own eyes, I guess the idea of being beaten by Copper just seems insane.
So there it is. A Copper rush. Awesome! (Yes, they could absolutely have stopped me by emptying another pile if they had seen it three or four turns earlier, but it was soooo worth the risk.)