It doesnt even need to be in a Kindred deck like [[Coat of Arms]]
For the most part, its done by emailing or registering online via the store website, or just by showing up and asking to join
The planar types are: The Abyss Alara Amonkhet Antausia Arcavios Arkhos Azgol Belenon Bolass Meditation Realm Capenna Cridhe Dominaria Echoir Eldraine Equilor Ergamon Fabacin Fiora Gargantikar Gobakhan Ikoria Innistrad Iquatana Ir Ixalan Kaladesh Kaldheim Kamigawa Karsus Kephalai Kinshala Kolbahan Kylem Kyneth Lorwyn Luvion Mercadia Mirrodin Moag Mongseng Muraganda New Phyrexia Phyrexia Pyrulea Rabiah Rath Ravnica Regatha Segovia Serras Realm Shadowmoor Shandalar Shenmeng Tarkir Theros Ulgrotha Valla Vryn Wildfire Xerex Zendikar Zhalfir If youve been following March of the Machine and the new battle cards, 36 of those planar types have also been represented on battle cards
How much does Ironhoof Boar cost
The deck combines the mana acceleration and synergy of Elf tribal with the raw power of Wolf tribal, creating a board that snowballs harder with every attack step
While I can't say with 100% certainty that MTG Rocks' article was the cause, as it's possible there's some Youtube video I've missed, this is the most prominent recent shout-out I've found