why are people buying so many pokemon cards With and holding sealed product these day will the value of these really go up that much? : r/PokemonCardValue Kids can't buy them anywhere':

Triggering off targeted effects from your opponents is just entering silly design territory, and it earned Nadu a much-deserved spot on the Commander ban list

They are only printed once per printing, meaning when an artist has sold or given away all APs from a given set, they are gone forever unless found again on the secondary market

Chainer is limited to once per turn because you get to cast a creature from the graveyard, but it also gives haste to any creature you already want to cast

card on their play area is returned to their DON

Open The Vault The vault is a system that was added to give players more Wildcards, but it's not all that practical, or at least it should offer more substantial rewards

For example, getting a free 3/3 creature token over and over again lets you use it to power the kind of sacrifice-based strategies you often find in black (even Proliferating again if you use Throne of Geth)