Liliana Vess allows the player to force their opponent to discard cards, allows them to search their library for a specific card, and can return all creatures in both player's graveyards to the battlefield under their control, flooding the board with creatures for a huge swing, which will often lead to the end of the game
That being said, it's still a super cool design that might find a home in my Horror Cube that has a Demon archetype, complete with things like Liliana's Contract
Thopter Pie Network I think we all know what this holiday card is paying homage to
Green can help ramp out the scariest monsters while drawing tons of cards to eventually overwhelm your opponents under a tsunami of green power
Tap it for two mana and pull off a counter and draw a card, and that's eventually 3 for 1 card advantage
Vintage Lurrus of the Dream-Den unbanned Lurrus was originally banned before the companion errata due to its absurd strength in the format, being the only card banned on power level and not even being able to be hampered by a restriction