Well, the catch is that The Millennium Calendar takes about 1,000 years to get there, and there arent too many ways to cheese the win since it only picks up counters during your untap step (during which no one can cast spells or activate abilities)
So, whether youve been on the Disney Lorcana train since day one or are brand me to it, these two Starter Decks are perfect to pick up
But that's not often
Attack with Gwenom, and you can loop the Cultists effect endlessly with Mortuary to drain every other player of all their life
Due to internal conflicts between different departments of Wizards of the Coast, the card was never scheduled, though, and lay dormant for years
The cantrips in the maindeck do not allow you to get rid of cards, so it is possible to get stuck with multiple copies of Yawgmoths Bargain for example