Eyetwitch, Hunt for Specimens, and Field Trip are all cards youre only playing if your deck is dedicated to doing some specific thing they enable
According to known Pokemon leaker Centro Leaks, trading the card-collecting mobile hit will be limited "to diamond and 1-star cards:" "Seems like Pyoro is now hinting at the 'Pokemon TCG Pocket' trading feature being limited to diamond and 1-star cards." Pokemon TCG Pocket doles out its cards on an eight-level rarity scale, going from Single Diamond (aka common) up to Crown Rares (ultra-exclusive gold art cards)
Also, those tokens come in Flying, and triggering any EtB enchantress triggers which can equate to lots of extra cards
You can still play items, attach energy, and play tactically, but the moment you play down your Mega Evolution, it becomes your opponent's turn
Pale Bears and River Bear have islandwalk, which I mean, landwalk in the current year of our Magic meta