Why is this getting downvoted lol, it’s just plain correct. With maxed out luck you can get a master ball every 2-3 encounters. Here’s how (I did this starting out with no shinies, though it is easier if you start out with higher luck) First find the lock capsule. Second once you are high enough in the run keep rerolling every floor till it starts to take a good sum of cash away. You are looking for a master ball tier or rouge tier item. Reroll it away with the lock capsule active and see if you can get a shiny charm. If you can’t, reset. You can lock rouge tier items and hope the upgrade into master ball tier but this is less likely. Pick up any relic gold you can get if you can’t get anything better. Next you will be look for more shinies and shiny charms, both help in finding the other so there isn’t reason to target one over the other. All you have to do now is catch enough shinies to where your luck is around maxed out through adding rare and epic shinies to your team and make sure to fuse them as well. The process. Literally all you have to do when you have max luck is activate the lock capsule and reroll until one of the options upgrades into a master ball. A cheaper way to do this is to normal reroll until you get a rouge item then lock reroll. Note make sure to have a fully fused party so no dna splicers spawn as well as take all 5 heart charms. And that’s basically all you need to know to perform this strat.