I would love to have some achievement for a guaranteed reward. Not too easy to achieve, so ppl don't abuse it with their low gear alts.
I finally got lucky and dropped my 3 pieces, but the struggle was hard and I had really, really bad RNG. I got my first earring withing 60 runs, then 8 more earrings and my first neck when I was close to 500 runs. At almost 550+ I dropped my first ring. Most of my runs were done at Stage 41, I even tried to farm Stage 20 for the ring but the leggy droprate was simply non-existent. My motivation to even play the game went to almost zero, and thinking about dropping like 10 belts in a row in the next dungeon gives me nightmares already. xD