In Champions of Kamikawa (2004), Card not found became the new paradigm
Vivi Ornitier is the most prominent addition from Magic: The Gathering FINAL FANTASY, and 91% of Izzet Prowess pilots have included this card in the 75, most commonly as a two-of or three-of in the main deck
I should point out that card frames have become a lot more complicated since Alpha

Here are some of the hit singles off the new Prismari album: Muddle, the Ever-Changing is a new spin on typical clone-and-copy decks which, whenever you cast an instant or sorcery, turns itself into a copy of another nonlegendary creature you control and gains myriad Dirgur Focusmage comes packed with both a spell discount effect and Braingeyser as its prepared classic spell (also a Reserved List treasure), triggered in a manner similar to the Opus mechanic Prismari Pianist takes the old formula of giving tokens for cast triggers and amps it up by generating three tokens for spells instants or sorceries that cost at least five mana Abstract Performance takes the minigame aspect of Fact or Fiction and raises the stakes of your opponent's choice of pile by allowing you to cast a spell for free from the non-chosen pile Coastal Peak, Scorched Geyser, and Turbulent Springs, which finally completes the "bi-cycle" and "tango" land cycles I've slowly fallen off the blue-red Spellslinger wagon over the years, but Prismari Artistry is a take on the archetype that actually catches my interest

The card is now legal only in Legacy and Vintage, but it's restricted in Vintage and many people have said it should be banned from Legacy