Charge is a spell used to empower the god spells unlocked at the Mage Arena. After casting this well, the player becomes imbued with power for the next six minutes (600 game ticks). During this time, the base maximum hit of god spells is raised from 20 to 30. Charge can only be cast every 60 seconds (100 game ticks), meaning it is not a viable method of training magic.

A Magic level of 80 is required to cast this spell, and it requires 3 Fire runes, 3 Blood runes, and 3 Air runes to cast.