Gemstone Caverns a big deal here, as a cEDH staple with even fewer printings than the Tomb and a price that hovers around $50
So for the early game, we'll favor playing OP08-023-carrot over OP07-026-jewelry-bonney since we want to reactivate her effect when she attacks, keeping an opponent's Character rested
The worst case involves manually coding each cards function into the game engine, and referencing them from a static class when a cards effect is activated
It's a lot
A25 Masters 25 5 - Mythic Rare - English SOA #3 #5 MPS_AKH #31 V14 #1 VMA #12 ME4 MED #4 P3 #6 6E P2 #0 Brawl, Commander, Competitive Brawl, Historic, Legacy, Timeless, Vintage Alchemy, Modern, Pauper, Pioneer, Standard
The most expensive by a mile is the Giratina VSTAR (GG69/GG70) which is the strongest card out of the quartet