I also think Wizards needs to dial them back, and definitely not present them as a players only option.
Keep in mind that I'm a collector first, and player a very distant second, so my strategic analysis isn't Wargamer approved - but even we pack rippers know a massive damage number when we see one
Two black mana to reanimate any creature is an incredible rate, even with the exile requirement tacked on
It would easily be the most powerful legendary land in the format in that universe
3 | Know Evil Type: Scheme Rarity: Common Card Text: When you set this scheme in motion, until your next turn, up to one target opponent cant attack with creatures, up to one target opponent cant cast creature spells, and up to one target opponent cant cast noncreature spells
Sister Hospitaller from the Warhammer Universes Beyond decks does the same while also gaining you life