Iban blast is powerful a magic attack spell that becomes available at level 50 after completion of the Underground Pass quest. Iban blast can only be cast with an Iban staff equipped and the staff must be recharged at Flames of zamorak in the Underground Pass after only 25 casts. Iban blast is a strength 25 missile attack and costs 5 Fire-Runes and 1 Death-Rune.