Assuming that the creatures that you copy also have triggered abilities, you might get a ton of value
Every pack includes a combination of 15 card(s) of rarity rare or higher, and 38 uncommon, 27 common, and 1 land cards
If it sticks on the battlefield, any creature entering the battlefield will trigger it to dome the opponent, or scorch a creature equal to the entering creature's power
Cresselia EX drop event period The Cresselia EX drop event runs for two weeks starting from February 3 to February 17, 2025
While this may be a more new-age issue in the game, it did prohibit me from creating the best decks from Base Set, until I managed to get over myself and just play some Hitmonchan
If you plan on actively using them for gameplay or trading, card sleeves offer a convenient solution as they are easy to remove and replace