Hi
That was the known distribution from the last post from August, 2019:
From 2007 to 2011: Only 1 card per year.
Except 2010 with 2 cards. Terra Stomper showing up 10 years after
From 2012 to 2016: 2 cards per year.
2017. 3 Cards:
Thalia's Lancers: From Eldritch Moon
Bristling Hydra: From Kaladesh (First Resale Promo without the shooting star but with the expansion symbol.)
Curator of Mysteries: From Amonkhet.
2018. 2 cards:
Etali, Primal Storm: Rivals of Ixalan.
Lathliss, Dragon Queen: From Core Set 2019.
2019. 1 card:
Beast Whisperer: From Guilds of Ravnica.
This is the latest info for 2020 and 2021
It's possible that more could exist ?
2020. 3 Cards:
End-Raze Forerunners: From Ravnica Allegiance.
Gargos, Vicious Watcher: From Core Set 2020.
Opportunistic Dragon: From Throne of Eldraine.
2021. 6 cards
First year with 6 cards:
Neheb, Dreadhorde Champion: From War of the Spark.
Stonecoil Serpent: From Throne of Eldraine.
Nyx Lotus: From Theros Beyond Death.
Kogla, the Titan Ape: From Ikoria: Lair of Behemoths.
Vito, Thorn of the Dusk Rose: From Core 2021.
Scute Swarm: From Zendikar Rising.
5 Sets from 2021 with not known Promos for now:
Kaldheim
Strixhaven: School of Mages
Dungeons&Dragons: Adventures in the Forgotten Realms
Innistrad: Midnight Hunt
Innistrad: Crimson Vow
Resale Promos (English) subsection:
http://www.magiclibrarities.net/160-rar ... index.html