Air Strike, a free-to-play magic spell, is the weakest air spell in the standard spellbook. It requires one Air rune to cast. The base damage of this spell is 48, and it scales up to 153 at 16 Magic. This is one of the few attack methods that can damage Salarin the Twisted. When used against him, the spell will either "miss" or deal 90 damage. Air Strike is a very useful spell for new players who are just starting to train magic. The cost of the spell is very low, and players can even get the runes for 30 casts for free from Aubury in Aubury's Rune Shop located in Varrock.