In the absence of cards like [casthaven]Stifle[/casthaven], [casthaven]Wasteland[/casthaven], [casthaven]Force of Will[/casthaven], and dedicated hosers, I have no idea how Modern decks can fight them, other than by playing a version of Eldrazi designed to break the mirror (or perhaps [casthaven]Painters Servant[/casthaven] is a stronger hoser than it appears)
Lost Origin was launched in September 2022 and is part of the larger Sword & Shield series, which is based on the video game
As with all the cards from early Pokmon sets, there are first edition or unlimited versions, though here even the unlimited card will set you back at least $100
The best ones are permanent ones that can keep triggering like Conjurer's Closet or Thassa, Deep Dwelling, but both are out of budget
(Target land you control becomes a 0/0 creature with haste thats still a land