Sour


 * This Djinni appears as an enemy that can be battled.

Sour (シェリー Sherry) is a Mercury Djinni found in.

Sour is the second Mercury Djinni in. The separate Djinn list viewable with the Select button from the status screen lists Sour and all other Mercury Djinn introduced in The Lost Age before the seven Mercury Djinn from the original Golden Sun, most likely because all the Djinn from the original game can be gotten all at once late in The Lost Age. However, the original Djinn are ordered before all of the Djinn introduced in The Lost Age in the Djinn inventory screen while they are allocated to characters. By this order, Sour is the ninth Mercury Djinni in the GBA series, rather than the second.

Basic description

 * "Reduce a foe's resistance."

When Set, Sour increases its Adept's base HP by 8, base Psynergy Points by 4, and base Attack by 3.

When Sour is unleashed in battle, the user deals a Mercury-based attack equal in power to the user's normal physical attack multiplied by 1.5x. Then there is a chance the target's Resistances will be lowered by 40 ("two stages", the same amount as the Weaken Psynergy. The most Resistances can be lowered down by is 80, as in "four stages".)

Visually, Sour's unleash animation resembles the user making a strong, Mercury-aligned hit, and after the hit the purple-shield-shattering effect plays out at the enemy's position to indicate that the attempt to lower the target's Resistances has been made.

Location
Thus, it is very often missed by players playing the game the first time without any outside information. The battle with Sour may ensue in place of a random battle in the pictured area northeast of the town of Mikasalla and just below the cavern containing the Megaera summon tablet. It must be defeated to be acquired. See here for enemy statistics.

Analysis
General: Sour is an ideal attacking Mercury Djinni because it has a moderately strong damage multiplier of x1.5, which means it is likely to produce satisfactory damage results when Unleashed by an Adept with a high attack rating. Mercury Djinn do not get higher damage multipliers, so Sour will only become more usefully damaging as the game progresses all the way up to its end. Sour has a relevantly beneficial side effect to boot; its chance to lower the target's Resistances will increase all damage the target will take from any subsequent attacks that are aligned with any of the element, therefore making the enemy fall faster, even though the difference the resistance drop makes probably isn't all that high. It has an identical counterpart in the Mercury Djinni Claw in Golden Sun: Dark Dawn.

By game
This is good flavoring to what is already one of the best attacking Mercury Djinn in the game; a 1.5x damage multiplier is matched only by the later Mercury Djinni Gel (and to compare secondary effects, Gel has a chance to drop the target's Attack rating by 25%; many prefer the sharp drop to resistance because that is much more likely to be taken advantage of, since an attack-dropped enemy won't always use an ability that will be hindered by the lowered attack rating). Another benefit to Sour is that despite being one of the best attacking Mercury Djinn especially from an endgame perspective, it is found very early in the game. Aside from Gel, perhaps the only other Mercury-element attacking Djinni that matches Sour in terms of overall value is Serac, which does a high amount of bonus set damage and has a chance to instantly kill the target.

If you have Sour and the previous Mercury Djinni Fog at the early point in the game in Osenia (the point in the game when the Mercury Adept Piers hasn't joined yet), you can consider having these two Djinn be set onto one of the three Adepts to put them in the second stage of what their Mercury-combining class series would be. Furthermore, you may have both of these Mercury Djinn On Standby once your party fights Briggs in Alhafra - even though your other Djinn will be contributing to your Adepts' classes, you are allowed a free Nereid summon, though you should be mindful of what Adepts these two Djinn are present on, because when they automatically Set themselves back they will change the Adepts' classes, likely for the worse. Try to put both Mercury Djinn on one Adept in this case so that when both Djinn are Set it will put the Adept in an improved class.

Name Origin
At first glance, Sour seems like an unlikely name for a Mercury Djinni. However, sourness is the taste that detects acidity. Acids are typically considered liquids or are associated with them, hence the reason Sour is a Mercury Djinni. Acids also corrode, which fits the side effect of the Djinni.