The main RuneScape Wiki has an article on: Battlestaff of fire
The Old School RuneScape Wiki also has an article on Battlestaff of fire.

The Battlestaff of fire, one of the four elemental battlestaves, was released in March 2002 as part of a high-level Magic update. This update also included the Blood-rune, required for all four of the Wave spells. This battlestaff may be made by attaching a fire orb (level 63 Magic needed) to a battlestaff (level 62 Crafting needed) granting 125 crafting experience. The battlestaff of fire requires 30 Attack and 30 Magic to wield.

Acts as unlimited fire runes when wielded.

Dropped by

Monster Combat level Quantity Rarity
Fire Giant 109 1 4Rare

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