Phyrexians were depicted as transforming into their body horror forms through Incubator tokens, as well as a series of creatures that became Phyrexians through activated abilities
It is highly unlikely that we will see anything resembling Planeswalkers in the set, and mechanics might get a slight rewording to make sure they're all user-friendly for new players
VS Sultai Sacrifice Out: In: Their Cats are nerfed without the Witchs Oven and Embereth Shieldbreaker keeps your Adventure count high enough for Edgewall Innkeeper after sideboarding out Rimrock Knights
On top of the nine different versions of Teferi, Master of Time, Core Set 2021 will also feature what Rosewater called vertical cycles of cards, meaning groups of cards that form a cycle within the same color
Spike Feeder and Collected Company can complement this plan well and win on the spot in a lot of games
This four mana creature lets you pick a creature type when it comes into play, turning itself into that creature type