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One can increase the power of a spell by waving their wand in circles before casting a spell. The spell, once its power has been increased, will change colour from its ordinary colour to a different colour. If one attempts to charge a spell more than the spell should be charged, it will backfire in mid-air and cause minor damage to them.

Behind the scenesEdit

• In the fourth video game, the spell Magicus Extremos is used to replace the more generic building up of power.

AppearancesEdit

• Harry Potter and the Chamber of Secrets (video game) (First described)
• Harry Potter and the Prisoner of Azkaban (video game)
• Wonderbook: Book of Spells (As "building up power")