There are a lot of ways to establish infinite loops with Emry all you need is something that untaps Emry when you cast the spell you target, like Jeskai Ascendancy, Paradox Engine, Intruder Alarm, or Mirran Spy, and a way to get whatever youre casting into your graveyard again, like the legend rule on Mox Opal or Mox Amber, or sacrificing the artifact, either to itself or something else
This set also has plenty of artifacts to fuel Urzas abilities, so I have to imagine itll be pretty broken in Final Fantasy Limited
Get yourself a discount with our friends at Buy The Same Token
It sits in a strange place as a worse removal spell than other options and a much worse card advantage spell than both Treasure Cruise and Painful Truths
This ability really lets him live up to his epithet, which can lead to several variations of combo-killing the table, either through damage or through mill
Curiously, the actual Pip-Boy 3000 artifact isn't nearly as expensive