rarest card in mtg 25 Random Rare Cards Foils/Mythics/Planeswalkers The 15 Most Expensive and

The Mycotyrant Finally a fungus commander thats better than Slimefoot, the Stowaway

Spirit of Winter will never reach the heights of the D23 Elsa - and the price may go down if the meta stops favoring the card - but it's worth a decent amount as far as trading cards go

Instant Instant (CTRL to add secondary) Land Mosswort Bridge Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped

In the case of Emergent Ultimatum you just need a redundant combo that you can fetch three cards with to always win, like the Thoracle combo discussed