Unpredicted

The Unpredicted is a pre-hardmode BUFF (It is Bold and Italic so you don't think it is a debuff) which allows to override debuts that block manual healing (drinking potions) such as Potion Sickness. To get this buff, you have to eat a Diamond Goldfish. This is pretty OP, but the problem is that Diamond Goldfish is a rare ocean mob, Diamond Goldfish Walker is a rare rain mob and the Diamond Goldfish itself is an item which is rarely found in Moldy Crates, which are caught from PURE caverns.