(Disclaimer: I have not played Endless Mode, and do not know if any changes were made to this setup. Furthermore, I do not know if, say one of the tokens grant this as a power or something. If so disregard this statement.)

So I was thinking. A while back I made a topic on the Gold Devil Reward, and how it was frustrating to have to get 3 different cards, several reward sucesses ETC to get the Huge Sucess granter. I will not lie, I was just kinda hoping to get that potion card to include in the deck rather then go though a mini quest each time. At the time, I was told changes might be made (I do not know if they were) and that it might be better in Endless mode.

Thing is, due to the mechanics of Endless Mode, I can see it being a lot worse. Simply put, you have to rely on RNG to get 3 different card. And if you draw them all at the same time, you can only pick 2. And with all the other cards out there, it becomes a lot harder to get those 3.

In short, barring a really lucky run, the odds of you getting it in Endless Mode are even less then in Challenge Mode, and the odds of getting it at a good point in Challenges were low to begin with. DX