It is sort of like Nat Paegle from Hearthstone
Anafenza, the Foremost Anikthea, Hand of Erebos Betor, Ancestor's Voice Betor, Kin to All Bilbo, Birthday Celebrant Colfenor, the Last Yew Doran, Besieged by Time Doran, the Siege Tower Felothar the Steadfast Felothar, Dawn of the Abzan Ghave, Guru of Spores Ixhel, Scion of Atraxa Karador, Ghost Chieftain Kathril, Aspect Warper Kethis, the Hidden Hand Myrkul, Lord of Bones Narci, Fable Singer Nethroi, Apex of Death Nethroi, Apex of Death Tayam, Luminous Enigma Teneb, the Harvester Thalia and The Gitrog Monster The Necrobloom Vishgraz, the Doomhive
The collection contained playtest versions of some popular cards like Fireball, Giant Growth, and Sinkhole, but lacked any of the most desired cards like the Power 9
Originally intended as land-specific mechanic, it was expanded to nonland permanents in 2022 with the release of Streets of New Capenna
Okay, one of the mechanics making a comeback in Future Sight
Ezuri, Renegade Leader Ezuri, Renegade Leader has shrunk in popularity with modern elf commander usurping its throne as the elfball option