Oboro-Guruma, the Wheeled Mayakashi X EARTH Level 3 [ ZombieSynchroEffect ] ATK 800 DEF 2100 1 Tuner + 1+ non-Tuner monsters You can only control 1 "Oboro-Guruma, the Wheeled Mayakashi"
Thankfully, over the past decade, even Wizards has realized that partners are pretty broken, and now they avoid printing more cards with the mechanic, instead relying on various partner-with-style mechanics that do something similar but with a much smaller pool of cards to choose from, like how you can partner a Doctor's companion with a Doctor from the Doctor Who set
WotC was skeptical about whether such a system could be implemented
Matt Jarvis News Magic: The Gathering is getting more Lord of the Rings cards that form gorgeous scenes and give its characters the rock-star treatment Four new scene boxes on the way, plus Special Edition Collector Boosters with 60s music poster-inspired art
Sorcery Color tag templates(None) Nyxbloom Ancient Trample If you tap a permanent for mana, it produces three times as much of that mana instead