>>21926541I like using lore as a way to fill in gaps and connect dots after building up the main, present plot.
Example:
I had to explain why there were no Fairy-types before, so I folded it into AZ's backstory - which was already present as another part of the lore - and said that something happened in the war that caused them to lose their characteristics as a type. Said incident will be reversed later in the present to have them come back.