Accidentally bought 2x drop, what to do?

Old Fox, Seruf, King Sage Cat, Tae Roon.

Go really fast, loop back, start again! GOGOGO

Edit: realize the card is gone, but the point is, this is doable and allows you to pull the most Area bosses at once.

I once babysat Fox, Seruf, Tae Roon, King Sage Cat, Elliza(in that order) for a few hours. Fun times, man. I probably got around 20+ scrolls. Harharhar.