>>56540209Lugia has already gotten more lore over time, it created the Whirl Islands to stop humans from waging war, the Bronze Tower was created for it, and it summoned the rain that extinguished the fire that burnt its tower down.
Problem, this does more for Suicune than it does Lugia since Suicune represents the rain, that's why its Ho-Oh's favorite child, Lugia summons rain, rain saves Ecruteak City by putting out the fire and the Rainbow Pokémon appears to revive the fallen into legends.
Lugia's connection to the birds has always been an anime exclusive thing, it's never elaborated on in the games.
If anything, Raikou really got the short end of the stick, at least Entei got the 3rd movie, Raikou got to be the bike in Guardian Signs.
