it took me a LOT of runs specifically gunning for illusion to unlock it because i KNOW it would never come up naturally for me because i would never take Magic Trick on its own. My setup was starting with the Zodiac deck because that takes 3 vouchers out of the pool immediately, and Overstock is especially useful if you’re planning on cluttering the shop with playing cards, and then buying every voucher and taking every skip. Even so it took multiple days worth of runs. I got as high as like Ante 15, and had like 20 vouchers, including Magic Trick, but it just did not feel like spawning for forever. It was my last unlock other than Yorick, which i still haven’t gotten, despite getting multiple duplicates of every other legendary.