That means that outside of niche situations like Universes Beyond, Masters or Commander sets, were unlikely to see the mechanic return anytime soon (if at all)
Cost is already paid
Olivia effectively turns your graveyard into a second hand, making board wipes much less effective against you
If it leaves the battlefield before that point, it will stay in whatever zone it's in, even if it's returned to the battlefield before the ability resolves

Kanto Pokemon: 20230322_14243819202576 630 KB 20230322_14251219202603 749 KB 20230322_14252119202560 586 KB 20230322_14252919202509 699 KB 20230322_14253419202560 657 KB 20230322_14254419202560 723 KB 20230322_14255019202537 623 KB 20230322_14260019202541 635 KB 20230323_15293419202488 656 KB 20230322_14262319202464 660 KB 20230322_14262919202560 647 KB 20230322_14264119202478 652 KB 20230322_14264819202560 655 KB 20230322_14265419202544 643 KB 20230322_14265919202547 672 KB 20230322_14271119202515 684 KB 20230322_14272119202560 683 KB Episode/character cards: 20230322_14334819201428 306 KB 20230322_14335544953371 1.1 MB 20230322_14340143963270 1.08 MB 20230322_14385342213166 1.08 MB 20230322_14385843333205 1.06 MB 20230322_14292732364216 1.11 MB 20230322_14294934242887 952 KB 20230322_14402133124322 1.28 MB 20230322_14403332694359 1.08 MB Chase cards/rest: 20230322_14351030984110 1.37 MB 20230322_14352031714228 1.44 MB 20230322_14353233382941 930 KB 20230322_14355332294362 1.38 MB 20230322_14360118432367 402 KB 20230322_14361532534368 1.12 MB 20230322_14362021112842 441 KB 20230322_14365932454399 1.21 MB 20230322_14370317612282 383 KB 20230322_15003732433289 1.11 MB 20230322_14371532233614 896 KB 20230322_15061131363429 654 KB Pokemon Movie Sets Heres the two movie sets topps made, The First Movie is basically filled with cool Mewtwo art from Mewtwo Strikes Back + Pikachus Vacation and The Movie 2000 with Lugia/legendary birds art from The Power of One + Pikachus Resque Adventure

Note that Wizards has made an official statement that non-factory cut cards meet the "genuine and published by Wizards of the Coast" criterion, so their legality will just depend on whether they meet the other criteria in the opinion of the head judge