Imprism

Imprism is an ability that allows a Mirage Keeper to capture a Mirage in a prism. Lann and Reynn two of the few people in Grimoire with this ability. The ability to imprism Mirage's and then stack with them makes the twins formidable fighters.

Prismtunity
Before a mirage can be imprismed the twins must first create a prismtunity, which is a state indicating that the target mirage is vulnerable to imprisming. Each mirage has certain conditions that lead to a primtunity, which can be things like being dealt damage, being healed, or being hit by attacks of a certain element. The Libra ability shows the conditions that will lead to a prismtunity, provided the targeted mirage isn't currently being protected from imprisming by its leader or a threshold.