Azul

Azul is a Summon sequence of the Mercury element found only in Golden Sun: The Lost Age. It is the ultimate Mercury summon. When four Mercury Djinn and three Venus Djinn are on standby, and Azul’s Summon Tablet has been collected, the Azul Summon sequence can be activated. It resembles a very lengthy blue sea serpent encase the opposition in a big 3D sphere of Mercury energy and then crashing into it from below into the top of the screen.

Azul has a base Mercury power of 330 and also does additional damage equivalent to 21% of the enemy’s maximum HP. In addition, each enemy affected may be Stunned. Azul, however, is not automatically summonable once one collects the required Djinn. Azul can only be summoned once the Summon Tablet containing the sequence has been found in the lower depths Treasure Isle near the end of the game; the very fearsome optional boss Star Magician guards the summon.

Azul is among Daedalus, Catastrophe, Charon, and Iris as “ultimate” Summon sequences in the Lost Age. Azul is the game’s strongest Mercury-based attack; stronger than the popular Boreas summon sequence. The somewhat hefty Djinn requirement, however, causes players to use Azul mostly in boss fights, rather than in random monster battles, though Azul proves extremely effective against Wonder Birds at Islet Cave. And in the few boss fights that remain in The Lost Age after when Azul can first be acquired, Azul can be hugely effective, dealing massive damage to Valukar, Sentinel, the Flame Dragons, and the Doom Dragon itself.

Cultural Allusions
Origin: Judaism

Azul is modeled after the Leviathan described in the Old Testament of the Bible. The name "Leviathan" is used five times in the Bible, particularly in the Book of Job where the description in chapter 41 causes many to interpret it as a massive sea serpent, which lead to its popular modern-day image. This serpentine version of the entity makes many spiritual appearances in modern video games such as Square Enix's Final Fantasy series, and though its name in Golden Sun is different it is altogether likely this is yet another Leviathan appearance.

The name Azul also describes its color; the Spanish word azul means "blue".

Trivia
In the TV commercial for the original game, there is a dragon-like serpent made out of glass that bears a strong physical resemblance to Azul.