pokemon card porygon POKÉMON GAME sv4M 049/066 C Porygon2 Weakness Fighting ×2 Resistance None None Retreat Cost Collecting Every Porygon Card –

Ezuri, Stalker of Spheres does draw you a card whenever you proliferate, which is a fair rate for the advantage generation, but itll just serve you better as a complement to your consistent proliferates from Atraxa, Praetors' Voice

Slot 14 Token/Ad Card These cards are similar to what you'd find in a Draft Booster

That spell will resolve before you exile cards for the second cascade ability

Set boosters were doing well for stores and were thought well of by many players, so while not an unsurprising change, it is certainly odd considering the success of set boosters (of course I do not have information how well they were actually doing)