Energy Transfer is a Lunar spell that allows the caster to transfer special attack energy to a target player. It requires all of the caster's special attack energy and 10 hitpoints to cast - restoring all of the target run energy and special attack energy. Casting this spell requires that the cast have full special attack energy and more than 10 hitpoints. If you don't have more than 10 hitpoints, you will receive a message saying "You need more hitpoints to cast this spell".

A Magic level of 91 is required to cast this spell, giving 100 experience. It requires 2 Law runes, 1 Nature rune, and 3 Astral runes to cast.