Runestones are precious gems that harness elemental power. They are only found when magic and elements collide, making them quite rare. Various types of Runestones can be found, each with different effects. They can also be used to craft Elemental Weapons. Runestones have a 5% chance to be dropped by Fossilized Bloons. The type of bloon they come from is quite obvious. The Runestone types are as follows: * Sacred/Holy * Cursed/Dark * Fire * Water * Ice * Earth * Thunder * Poison * Bomb * Wind