Ok Richard Garfield, Ph.D
Off the top of my head, the first card that comes to mind is the highly coveted, 001/001 The One Ring that Post Malone purchased last year for a cool $2,000,000
Revised Badlands - PL, LP, GD, EX Bayou - PL Plateau - LP, GD, EX Savannah - PO, PL Scrubland - PL, GD Taiga - LP, GD Tropical Island - PL, LP, GD Tundra - LP, GD Underground Sea - PL, GD Volcanic Island - LP, GD Foreign Black Bordered Foreign White Bordered Bayou - LP, NM (German) Tropical Island - NM (German) Underground Sea - GD (Italian) Volcanic Island - EX (German) From FWB, we also got an Italian Wheel of Fortune for you
Maybe you can jam this in a Horror deck and do some work there, although I think it's still pretty underwhelming overall