Reverser

Reverser (天邪鬼) is the Unique Skill that Beretta gained as a gift from Rimuru's Harvest Festival. It was created from Rimuru's sense of helplessness and frustration from the time Rimuru was trapped in Hinata's Holy Field.

Rimuru can also use the prototype version of this kill thanks to Food Chain and Law Manipulation.

Effects

 * It allows the user to obtain two diametrically opposed essences at once—in Beretta's case, aspects of both demonic and angelic power.