Weight gain and Castlevania Commission for Dragoniade
Inside the forbidden alchemist lab, the Flea-chemist prepare their potions, in the garden walls the Flea soldier train to became rider and armored. They just need the war goose so they became proper Flea riders, what a special way to get those war-goose than use alchemy to turn unexpected castle guess into the perfect, powerful, strongest, virile and full of vitality goose mounts!
Unless you get your supply from Lucky's Alchemist and Co, otherwise you will get fat, flabby, heavy and lazy ones... that is.