The fastest way to check is by looking at the cards texture, holo finish, font spacing, and card back colors
Pokmon-ex cards also soon emerged as predominant fixtures in tournament decks as it was soon found that in the vast majority of instances, the reward of the Pokmon-exs remarkable power far outweighed the risk of surrendering an additional Prize card
Maybe something like a different regulation
There's also a sub-theme of creatures with toughness of one, since Zinnia gets a buff from the more creatures you have with a toughness of one
Protean Hulk Once a [wrongful] victim of the Commander banlist, Protean Hulk was freed in 2017, which paved the way for the later [rightful] banning of Flash
Nevertheless, it is a worthy entry into the hall of fame for white draw cards, and it sees multiple reprints to keep it cheap and affordable to whoever needs it