ItemDef(
    name: "Swiftness Potion",
    description: "Makes you go faster.",
    kind: Consumable(
        kind: Drink,
        effects: All([
            Buff((
                kind: Swiftness,
                data: (
                    strength: 0.25,
                    duration: Some(240),
                ),
                cat_ids: [Natural],
            )),
        ])
    ),
    quality: Common,
    tags: [Potion],
)