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« on: March 04, 2022, 07:14:53 pm »
Lich is a fancy new card, so I kind of want to try using it. Normally, I'd Priest chain with King's Court to trash N Fortresses and gain O(N^2) money. With Lich, you can trash it to gain cheaper cards back from the trash, so you can instead Procession the Priests. The limiting factor is then instead how many Procession plays you can do; because the first Procession you play cannot be played with Procession, you eventually end up with all the Processions in play, and all the Priests shortly afterwards, so you can't go infinite.
Let's say you play the first Procession ("Procession 1"). Each time Procession 1 is played, it plays Procession 2 twice, so that's 2 plays of Procession 2, 4 plays of Procession 3, etc. for 2^(N-1) plays of Procession and thus 2^N plays of Priest. With Inheritance on Procession, we can increase N by the number of Estates in the game. Supposing a 4 player game where every Estate was passed to you by Ambassador/Masquerade/etc., you can get 24 more Processions. Band of Misfits gets you 10 more, though you have to keep 1 Procession in the Supply. So that's 43 Processions total.
I think Captain can go infinite with this setup, so I won't risk it. I think you can stack up Duration plays of Procession to play more and more Captains each turn. Necromancer might work for 10 more Processions, but I can't figure out how to keep a Procession in the trash since Lich is mandatory, so I'll skip it.
Overlord can't be gained back by Lich, but you can use it to start the chain. Each Overlord can play Procession 1 twice, and you can play Overlord 30 times with King's Court, so that's 60 * 2^43 Priest plays.
To handle card draw issues, you can use Band of Nomads (along with some infinite buildup of Favors from previous turns using Student) and put a +1 Card token on Priest. You only need to draw back Lich and the card you fetch from the trash (if any), so that should be enough draw by itself.
N Priest plays gives O(N^2) money, so overall that's 3600 * 2^86 coins. Add in a Fortune to double it again for 2600*2^87, which, since I like seeing big numbers spelled out, is 402,330,512,767,748,589,342,215,372,800 coins.
I think you can optimize a bit further probably, there's still more room for extra cards. I'm only using Procession, Band of Misfits, King's Court, Overlord, Priest, Lich, Ambassador/Masquerade, and Fortune. I only need one copy each of the last 3, so those can be from a Black Market (depending on your feelings about split plies like Wizards and Gladiator/Fortune). So I only use 6 Kingdom cards. For events, there's Inheritance, and since Teacher can't be in the Black Market deck, we need to include Pathfinding or add another Kingdom pile. But that's still only 1-2 sideways cards.
As to whether this is doable on Dominion Online or not, it relies on having around 60 * 2^43 Favors from Student. If you click really quickly, you might be able to play like 10 Students a second, at which point it will take you about 1.67 million years to finish collecting the required Favors. So I probably won't be playing it out anytime soon.