Fire-Rune

Fire-Runes are one of the 4 elemental runes, used in combat to non-combat spells.

Fire-runes are used for the following spells:
 * Fire strike
 * Low level alchemy
 * Varrock teleport
 * Fire bolt
 * Superheat item
 * Enchant lvl-3 amulet
 * Iban blast
 * Fire blast
 * Claws of Guthix
 * Saradomin Strike
 * Flames of Zamorak
 * Charge Fire Orb
 * Fire wave
 * Charge

Dropped by

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Other sources

 * Underground Pass quest rewards players with 15 death runes and 30 fire runes.
 * They may also be obtained one at a time from Strange Barrels in Legends caverns.