mtg arcane secret lair cards Magic: The Gathering x Marvel Exclusive Playing (Model: Signet as "Earth's Mightiest Emblem" / Rainbow Foil) Arcane Signet (1492) (Galaxy Foil)

However, the fifteen cards created for that experience are available in Set Boosters, and the five rare cards are also available in Collector Boosters

This being an instant for two mana that also gives you more range as to where the damage can come from bodes well for it

The double exile on cast is also obviously a lot better than the destroy and does much more work than the Infinite Gyre in terms of keeping you alive long enough to attack when you are not Corspe Dancing or Sneak Attacking

Credit: Wizards of the Coast Kaya, Intangible Slayer BPhillipYork: 7 mana for this seems like a lot, though exiling creatures and getting copies of them is super strong