|This article belongs to the Classic Continuity.|
Imperium Im Mentum is a spell that allow the user to wield a small flame of mana to appear around the hand and dive after the victim, causing a bright flash after the spell has taken effect.
In The Ultimate Sacrifice, Gwen used this spell in order to allow Ben to regain control of his personality while being manipulated by Sentient Ultimate Humungousaur. As said by Gwen, she wasn't entirely sure if this was the correct spell to use on Ben.
Imperium means "power to command" and Mentum means "result of" in Latin.