From Golden Sun Universe

Steam being unleashed in The Lost Age

Element Star mercury.gif Mercury
Battle Effect All Adepts' Resistances + 40
Set Bonuses
HP + 10
Attack + 5
The Lost Age Aqua Rock (battled)
This Djinni appears as an enemy that can be battled.

Mercury djinn.gif Steam (メロウ Mellow) is a Mercury Djinni found in Golden Sun: The Lost Age.

Steam is the sixth Mercury Djinni in Golden Sun: The Lost Age. The separate Djinn list viewable with the Select button from the status screen lists Steam 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, Steam is the thirteenth Mercury Djinni in the GBA series, rather than the sixth.

Basic description

"Increase all allies' elemental strength."

When Set, Steam increases base HP by 10 and base Attack by 5.

When Steam is unleashed in battle, all currently active and alive Adepts get buffed with an additional 40 resistance points to all their resistances. This is twice as strong as the effect of the Resist Psynergy. Any party member's resistances can be buffed up to a maximum of 10.

In The Lost Age, Steam's unleash animation visually resembles the user summoning the transparent blue image of the Mercury Djinni floating above the party. But then the Djinni immediately turns purple like a Jupiter Djinni, and each Adept has a collection of violet energy orbs gathered into them in order, and a violet image of a shield briefly flashes at each Adept's position to indicate a resistance boost.


Steam is reachable after getting the Parch Psynergy at the end of the Dungeon and using it on the head of the moai statue behind it.

Golden Sun: The Lost Age: Steam is located in the interior portion of the Aqua Rock dungeon, placed at the end of one stretch below a moai statue that spouts flowing water that prevents you from running up to reach it. You need to acquire the dungeon's Parch Psynergy first. Then climb up the right ladder and go up until you're just to the right of the top of the moai statue, and cast Parch on it. The flowing water will disappear. Climb down and walk up to Steam's position and battle it in order to earn it. See here for enemy statistics.


General: Steam's two-Resist-Psynergies-in-one effect is a valuable buffing effect because it lowers the damage ratings of any enemy attack on the party that is aligned with any of the four elements. Using it helps cushion the blows of offensive Psynergies and elemental monster skills used by bosses just as increasing the Defense statistic helps cushion any offense based on the enemy's own Attack statistic. Elemental physical attacks can be weakened by both defense boosts and resistance boosts, so Steam can be combined with a Defense-booting effect like the Mars Djinni Corona. Steam is best used by an Adept that does not typically attack with a weapon and opts to cast Psynergy and support effects, and is particularly useful if you are planning a Mercury Summon, which unleashing Steam will set up for.

By game

Golden Sun: The Lost Age: Up until Isaac's party joins late in The Lost Age, Steam is the one Djinni that is Resist doubled in effectiveness, and when they do join the Jupiter Djinni Breeze they bring with them is a duplicate of this effect. Despite Resist being a Psynergy that starts becoming available for various Adepts at level 22, which is about the level various players are at or above when they get this Djinni in the first place, this can be a very valuable measure to lower the damage of boss enemies' elemental assaults toward you from when it is collected all the way up to the endgame, and is primarily useful against the Serpent, Avimander, and Poseidon. When Sheba is in her mono-elemental class series, the Wind Seer class series, she will learn Resist at 22, but unleashing Steam in battle should almost always be considered a superior option (even though it will likely come from Piers, typically a damage-dealing Mercury Adept).

Name Origin

Steam is emitted from water when it is boiled. In its vaporous form, it makes wet any surface it comes into contact with.


  • In the Japanese version of The Lost Age, Steam is called Mellow. Golden Sun: Dark Dawn has another Mercury Djinni also called Mellow, who has a similar effect.
Djinn in Golden Sun and The Lost Age (Master List)
Venus Mercury Mars Jupiter
Golden Sun FlintGraniteQuartzVineSapGroundBane FizzSleetMistSpritzHailTonicDew ForgeFeverCoronaScorchEmberFlashTorch GustBreezeZephyrSmogKiteSquallLuff
The Lost Age * EchoIronSteelMudFlowerMeldPetraSaltGeodeMoldCrystal FogSourSpringShadeChillSteamRimeGelEddyBalmSerac CannonSparkKindleCharCoalRefluxCoreTinderShineFuryFugue BreathBlitzEtherWaftHazeWheezeAromaWhorlGaspLullGale