Magus of the Disk

Nevinyrral's Disk gave white (and any deck willing to run a colorless rock) a reusable board reset that demanded a turn of foresight: drop it tapped, then wait. This puts the same wrath-on-a-stick onto a creature body, and the conversion is more interesting than a flavor reprint. The artifact only had to survive long enough to untap; the Magus has to survive as a 2/4 in a color full of removal, which makes it both more vulnerable (every creature answer now hits your reset button) and more exploitable (you can blink it, recur it from the yard, or tutor for it with creature-fetch effects the Disk never had access to). The tapped-on-entry clause is the price for the asymmetry the card refuses to grant: there is no escaping the symmetry of the sweep, only the timing tax, so the body sits exposed and unusable until its next untap step before it can ever point itself at the table. That telegraphing is the whole game with it. Opponents see the threat the moment it lands and play around the inevitable, holding back commitments or racing to kill it first. Translating an iconic artifact into a Wizard was a recurring move in the era that produced this card, and Magus of the Disk is the cleanest of those translations: the effect is preserved exactly, but every axis the original sat on (recursion, tutoring, protection, sacrifice value) shifts the moment the reset comes attached to flesh.