Spawn weightings were increased for Darkrai, Jirachi, Reshiram, Spectrier, Volcanion, Zekrom and Zeraora. Additionally, Jirachi was moved from Modified Gravelly Mountains to Gravelly Mountains, and Zeraora was moved from Shattered Savanna Plateau to Savanna Plateau (due to an issue with BYG causing these biomes to spawn extraordinarily rarely/not generate properly).
Written for pixelmon 9.1.3
Download link: https://data.pixelmonmod.com/index.php/s/4B3w3SMrXPaGwYr