The reason that Mystic Snake is so much more played than Plasm Capture is that it is a creature card and thus has loads of synergy with other cards that no other counterspell has
While this set doesnt introduce any mind bending mechanics or new card types, there are still plenty of reasons to be excited about this one thanks to new Disney properties being included (Encanto) and even a standalone product that allows players to collaborate against a common foe
As is, it reminds me of Divine Retribution, a bulk rare which didn't see any competitive play
Capsize Why is a bounce spell clocking at #2 ahead of the best burn spell ever printed
Moana, Born Leader goes with Locations, Cogsworth goes with Reckless characters, and Scrooge goes with items
Latchkey Faerie With Latchkey Faerie, the prowl alternate casting cost not only gives you a decent flying attacker but draws you a card