The First Descendant has dozens of modules that you can equip on your Descendants and weapons. The Shot Focus is one of the rarest modules in the game, and here's everything you need to know to get it.
How to Get the Mental Focus Module in The First Descendant
Although Shot Focus is a rare Cerulean-type Module, it is difficult to obtain in The First Descendant as it has no special farming spot. No mission or activity can drop this Shot Focus with a fixed chance, unlike other Modules such as Action and Reaction.
However, some players pointed out that you can get Shot Focus by combining other Modules in Silion in Albion. Getting the Module you want by combining requires a lot of luck, but you can try combining rare Cerulean (C letter icon) Modules for a higher chance of getting Shot Focus.
The Bunny Cave is a good place to farm Cerulean Module. It's unclear how much using multiple Modules of one type affects the combo product, as I got everything except Cerulean Modules from combos.
