Prints "Always", "Common", "Uncommon", "Rare" or "Very rare", based on the number in the first (and only) parameter. For example:
would produce "Uncommon", as 1/50 is considered uncommon.
Primarily used with revenants share the same loot but it is more common from higher levelled monsters, as documented in .to dynamically output a different rarity when the drop rate is varied. As an example,