To illustrate what I mean, let's consider a turn where your opponent simply draws a card, plays a land, and says, "Go." Your opponent has whizzed through his or her turn, but technically speaking his or her upkeep, combat phase, and end of turn step have still happened, and you have the option to cast a spell at any of these times
The Cloudsea Djinn, alias Nyxbloom Ancient, features artwork by iconic Final Fantasy artist Yoshitaka Amano
Visually, it achieves this almost perfectly, and the only way to tell the difference between the two is by checking the copyright date
These are known as Secret Rares, and among these cards youll find alternate art and special foil treatment variants of cards in the Base Set (as well as, in some cases, the odd card or two from another set in a special variant, such as gold Hyper Rare, that it hasnt been printed in before)