Unison Raid

Unison Raid  (合体魔法, ユニゾンレイド,  Yunizon Reido ) is an uncategorized spell.

Description
An extremely powerful spell that allows two Mages to unite Magics similar in nature together, thereby creating an even stronger attack. According to Jellal Fernandes, many priests have wasted their entire lives trying to achieve Unison Raid without success, thus implying that it is an extremely difficult spell to master. However, Lucy Heartfilia and Juvia Lockser succeeded on their first attempt, as did Wendy Marvell.