Equipment Matters / Metalcraft This one is a little less likely, but if the set opts to use artifacts for many of the relics and weapons of the Third Age, then metalcraft or other equipment payoffs are mechanics that could work
10.7 If, within 7 days of receipt of the notice referred to in clause 10.4, the Seller informs the Company that the Seller wishes to take delivery of the Lot, the Seller shall be entitled to do so but only upon prior payment of the Offer Fee and any legal and other costs incurred by the Company so as to provide the Company with a full indemnity in respect of those costs
(As you cast this spell, you may sacrifice a creature with power X
There are over 50 lands that produce black mana, and not all were created equal
6 Lurrus Of The Dream Den - 31 Days The final card that was banned in May 2020 after 31 days, Lurrus of the Dream Den was removed from both Legacy and Vintage formats (via Magic Wizards )
It seems like this one might be the actual gold rather than the fools property though