This card is a bit of a sleeper, but with Cascade and Storm synergy, it has much more value than someone might think just by reading it
And Reckless Wurm was a great attempt to bring back and duplicate that success as well
Magus of the Moons flavor text, credited as a Numbers station transmission, alludes to shortwave radio numbers stations, generally believed to be in use as part of spycraft, but also a feature of the paranoid and conspiratorial side of horror
Teferi, Time Raveler Locking people from casting things on other turns means they cannot cast more than one spell every go around, while you can use flash, instants, and stuff
The first allows you to exile a card from the top of your deck and then either cast that card or deal two damage to each opponent
Although this will only be once as your opponents remove it, as it requires it to be targeted