Dual Magichange is a new gameplay feature that was introduced in Disgaea 4: A Promise Unforgotten and Disgaea 5: Alliance of Vengeance. It allows a monster to Magichange with character who already has a Magichange weapon equipped. In Disgaea 4, the ability to use Dual Magichange is unlocked by defeating any Level 1000 enemy or higher with a Magichanged weapon. The corresponding Evil Symbol, Dual Dojo will be unlocked as a bill and any Monster in the Evil Area will have the ability to Dual Magichange.
The ability makes its return in Disgaea 5: Alliance of Vengeance, with slight changes. The monster can Magichange with a character holding a magichange weapon, fusing the weapon into a larger version of the weapon. Several kinds of monster or combinations alters the appearance of the weapon, either giving them a slightly better advantage than the Giant form of the weapon or a different set of skills.