They are not entirely wrong though, a Near Mint Alpha Lotus can be worth well over 150k, but the Poor versions on Cardmarket start way lower
As you learn how to identify rare Magic the Gathering cards, this will become a crucial part of your inspections
Here you exile three and they are playable just on your turn, but that ability to make mana equal to the card count in your foe's hand can help you with that this turn
When you combine this with mono-black decks never hurting for mana thanks to their depth of ritual and mana doubling effects, I do think the cost is something players could work around
I hope the format can accommodate this awesome bomb, though its just as likely that itll be unplayable if Final Fantasy Limited is too fast
Finally, Dredge might also side in Abrupt Decay or Leyline of Sanctity for protection from dedicated Burn decks, though getting it in the opening hand is essential.