Iban Blast is a combat spell that is unlocked during the Underground Pass quest. In order to cast this spell, you must be wielding an Iban's staff. The Iban's staff must be charged, and each cast of Iban Blast will reduce that charge by 1 if used against a monster, or 2 if used against another player. A normal Iban's staff holds 120 charges, while the Iban's staff (u) holds 2500 charges.

Iban Blast offers a relatively high base damage of 25 for the Magic level required to use it. By combining this spell with other damage boosting equipment, even higher max hit are achievable. You can experiment with calculating those on our Magic Max Hit Calculator. Starting on August 21st, 2014, the Iban's staff is capable of auto-casting Iban Blast.

A Magic level of 50 is required to use this spell, giving 30 experience. It requires 5 Fire runes and 1 Death rune to cast.