Unison Raid

Unison Raid ( lit. Fusion Magic) is a unique type of magic which allows two wizards to unite their magical powers. Unison Raid is a special type of magic fusion, which allows two users the ability to share increased magic power for a short amount of time. It seems that for Unison Raid to be possible, you have to use similar types of magic as both Juvia and Lucy used water magic at that time (Juvia = Water Magic, Lucy = Aquarius).

Many priests have wasted their entire lives to trying to achieve it, but without success. However, Lucy and Juvia succeeded on their first try.

Trivia

 * In the game Fairy Tail Portable Guild for PSP Unisonraid is the group attack. When all player is in the same location and one active Ultra mode and use the attack.