Guttman Kubrick

Guttman Kubrick is a member of Legion Corps and a former prisoner in the Forbidden Cell of Zentopia's main prison. Guttman is a very cheerful and arrogant person that is inclined to underestimate the others, treating the other members of the Legion Corps, and especially Mary Hughes, like children. He trusts the Zentopia Doctrine very well and punishes those he sees disobeying it. This applies even to his comrades, like how he attacked Mary Hughes when she griped about killing a priest and destroying a church. He used his Rapture Magic, a Magic which allows Guttman to swell the Magic in a person's body and make it explode.

He can use this again and again until there is no more Magic power remaining within that person. (Source: Fairy Tail Wikia)