PZW

PZW- (or Plasma ZEXAL Weapons, or simply Plasma ZWs) is a sub-category of "ZW" monsters that activate their effects while they become Xyz Materials on a "Utopia" monster. Because they can gain effects on the upgrades of Utopia, those cards gain the effects of the PZWs. So, only 1 PZW- monster can be as an Xyz Material of a "Utopia" monster. They are named after futuristic weapons and a wild animal.