So in the original example, if I were to activate the ability of another Nightmare Moon Flip at a later point in the game (by paying in full, myself), player B would still potentially be able to cast the cards I find
Deadly Dispute: Deadpool fixes Costly Plunder here
If I had a nickel for every time my opponent played this card against me in a game of Standard on Arena , I'd be able to purchase a copy or two of this card
Grab a copy of Iymrith, Desert Doom here
Number 350 Language English Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (12/8/2022) You always perform your normal draw before this ability
This is also her first fully painted traditional artwork