"Activate all desployed characters' Bonds" minimal RNG strategy (no emblems or investments)
I spent a while sitting and thinking about what would lineup the easiest without any emblems and minimal RNG from the store, and this is it
Step 1: Start a run in Overclock Gambit on minimum difficulty (A0-1) as the achievement doesn't require you to be in Amethyst Gold or above
Step 2: Throw some random people on field and begin clearing floors and spend the coins on leveling up to certain levels before rolling for characters
Step 3: Stop at level 6 and roll for Pela, she only needs to be 1 star, then continue leveling
Step 4: Stop at level 7 and get Natasha and Acheron, then continue leveling
Step 5: spam level to level 8 or 9 depending on the investments you get, then reroll until you get Luocha and then you have the only 4 you need to get the achievement
Note: You don't have to run the entire run with just these 4, just any node I believe, but I'd do the final boss or just let them run it, which is the reason we're on A0-1