I got three of them in 5 minutes once I learned there was a hard mode that gives you a 30% chance to get it. I wasted so much time farming the 6% drop chance one, I did it 50 times and got 3 drops, then I did the hard mode and finished off the last two in 5 minutes. They should make this more obvious so new players like me know to not even bother with the normal mode one. Why does that even exist lol. I feel good about learning more about the game but sometimes it feels arbitrary, like they just put in a trap and you feel better when you escape the trap.
Anyway, the gift for my wife is now acquired!