You can just replace Pixie with Mining Village there to get an infinite / “arbitrarily large” amount of coin.
Hmm, does this work for the 1-turn supply empty as well? The Pixie solution relies on using Earth and Mountain gifts to gain basically everything; but since it doesn't go infinite with coin, it could fail on an arbitrarily large supply (like if a future expansion just said "all games now have an extra supply pile of cards costing $100). But if you can actually get infinite coins with Mining Village instead; then the solution works on all supplies.
Yes, Mining Village and Death Cart were used for loops before Pixie was a thing; the original 1-turn solution used Death Cart, in fact, and only relies on Nocturne for the heirlooms (in Black Market) to ramp up fast enough. Pixie as both self-trasher and heirloom-provider is more efficient and ultimately allowed for a two-event-no-black-market solution, though.
