Innocence: Canonically, Lavi is an exorcist of the Black Order, an individual capable of synchronizing with "innocence". Innocence is a substance which can purify and destroy the akuma virus when it takes on a weapon form and is paired with an appropriate accommodator. Lavi is one such user and his innocence takes the form of a size-shifting war hammer. In Overjoyed, its size-changing abilities are owed to its use of claytronics or programmable matter. Although he'll have access to the hammer, he won't remember how to use it until he begins his first major regain. It currently rests dormant in his room.