You choose which card will be returned to your hand and which will be put on top of your library as you choose those cards as targets, not as Once and Future resolves
Sure, they usually have to topdeck it, but theres a chance they will and if they do they get to kill you in one fell swoop
Art Design (uniqueness, style, appeal) Price / Value Pull rate Excluded Promo Cards Top 10 Pokemon: Sword & Shield Alt Art Cards #10 Beedrill V (Alternate Full Art) - SWSH10: Astral Radiance To start off our list, the beautiful Beedrill Alt Art that no one expected is a great example of an inexpensive card that boasts lots of appeal with its design, colors and the fact that Beedrill is not typically a popular Pokemon
"Even though Zapdos is a basic Pokmon, the holographic Zapdos card has a space for the evolution box punched out of the holographic foil," explained Abraham
Since Im at the four-mana slots, I think Im going to cut these two as well