Something, for example, like the three-mana artifact Crucible of Worlds
Cards of this rarity can feature both unevolved or evolved Pokmon, although in general youll find a lot of middle-stage or double-stage Pokmon
While this power was originally supposed to be used only when Slowking is the active pokmon slot, owing to the mistranslation, multiple Slowkings saw an introduction into the play reducing the opponents chances of using a Trainer Card monumentally
I play a lot of Green decks, some of that is for the ramp, but just as big is making sure you hit every land drop and Environmental Scientist is very good on that front
Modern Horizons cards making an appearance in this strategy are Sterling Grove, Enchantresss Presence, Solitary Confinement, Sythis, Harvests Hand and Sanctum Weaver, making this archetype the one that gained the most amount of cards in the format
Both because they help further convey how good this mechanic is and because I have a strong feeling they are going to be important cards in the format