Pay 20 life, get 20 cards
That actually doesnt sound like a bad deal on its own, but it gets even better with the addition of the ability to steal activated abilities for yourself
For the same mana, Sphinxs Revelation nets you the same number of cards and two life
(Until your next turn, those creatures attack each combat if able and attack a player other than you if able.) Whenever one or more creatures attack one of your opponents, those creatures gain menace until end of turn
The 16 most expensive Magic: The Gathering cards are: Pristine Alpha Black Lotus - $3 million The 1/1 One Ring - $2 million Black Lotus Autographed Alpha - $800,000 Mox Opal - $108,000 Lord of the Pit Alpha - $105,000 Timetwister Alpha - $84,000 Splendid Genesis - $72,000 Vesuvan Doppelganger - $63,000 Ancestral Recall Alpha - $36,000 Phoenix Heart - $27,500 Euroakus - $25,200 Time Walk Gamma - $26,400 Fraternal Exaltation - $23,750 Mox Emerald Alpha - $18,000 Underground Sea Alpha - $17,500 Mox Sapphire Unlimited- $16,800 Pristine Alpha Black Lotus Price: $3 million With the printing of the One of One Ring in 2023, there was a brief window when the Black Lotus wasn't the most valuable magic card of all time
Phyrexian Rebirth , Nameless Inversion , Sheoldred, Whispering One , Disciple of Bolas would be awesome for a clan.