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" ZW - ", short for " ZEXAL Weapon " ( ＺＷ （ ゼアル・ウェポン ） Zearu Wepon ), is an archetype of monsters with various Attributes (primarily LIGHT ) and Types (primarily Beast ) used by Yuma Tsukumo and Astral in Yu-Gi-Oh! ZEXAL , created through the power of ZEXAL via the Shining Draw . All ZW - act as support cards for " Number 39: Utopia " and its evolved forms . "ZW -" monsters can be equipped to "Utopia" monsters from the hand or field . They grant "Utopia" monsters an increase in ATK or DEF , as well as new effects .