Magic: The Gathering has been around since 1993, but it wasnt until 2011 that Wizards of the Coast debuted preconstructed decks (Precons) for the Commander format (also known as Elder Dragon Highlander)
But that's hard to make work and easy to disrupt with removal of the Commander himself or by the Anthems (Glorious Anthem), Auras (Rancor) or Equipment (Bonesplitter), and if you sweep you really break him with mass removal, and recasting a five cost is rough
It doesn't matter if the creatures that convoked Knight-Errant of Eos are still on the battlefield or not as the enters-the-battlefield ability is resolving
On top of that, he also has three other channels, all with more than 1 million subscribers, proving that he's an entire institution in YouTube
I think that hell do just fine in the 99 of this precon as a reliable way to put bodies on board and dig for artifacts, but he feels a bit slow and durdly due to the fact that his Ultima Founding and Master of Machines abilities require him to tap as part of their activation cost
Ethans Ho-Oh ex is a powerhouse in an Ethan-themed deck thanks to its Golden Fire ability