I always wonder - since technically they aren't legal
FA Serena is the main example for that
The era of modern trading card games (TCGs) was in its nascent stage, with Magic the Gathering released by Wizards of the Coast just two years prior in 1993, and the Pokmon video games, which the prototypes visuals were based on, were in the final stages of development
The trick, of course, is to play it in a situation where it benefits you more than any of your opponents
Paradox Rift Delivered the Best Pokmon TCG Turbo Decks Throughout the Scarlet & Violet era, Creatures Inc
Venser also makes random other cards way stronger, like Nasty End sacrifice The Hollow to draw 3 cards for 2 mana, Vat of Rebirth gets loaded with oil as The Hollow dies, or Ringsight to give Venser skulk so we can bypass blockers while tutoring up a card