Spellbook Swap is a Lunar spell which gives the cast the ability to cast one spell from another spellbook other than Lunar. This effect will last for 2 minutes, and once a spell is cast, your current spellbook will switch back to Lunar. You can only swap to spellbooks you have unlocked.

A Magic level of 96 is required to cast this spell, giving 130 experience. It requires 1 Law rune, 2 Cosmic runes, and 3 Astral runes to cast.