mtg all black cards For One Mana What are the weirdest/most off-color

Coram, the Undertaker Coram, the Undertaker increases in power based on the strongest creature in any graveyard, making it a significant threat

It doesn't exactly put permanents into play the same way other cheat cards do, but you could easily read it as pay 12 life, put a 12-mana creature into play, and the outcome is roughly the same

The exiled card will return to the battlefield at the beginning of the next end step even if Abuelo, Ancestral Echo is no longer on the battlefield at that time

But there are lots of cards that arent crazy foils or alternative versions that still have pretty high price points, even some basic lands are lucrative

It reads: Draw a card if an opponent has cast a blue or black spell this turn

But at six mana