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Thorn Psynergy series

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Nettle being cast in Dark Dawn

Thorn (ブロッサム Blossom), Briar (ソーンブロッサム Thorn Blossom), and Nettle (ブライアブロッサム Briar Blossom) are a series of Venus Psynergy featured throughout the Golden Sun series. One of the battle scenes showcased in Golden Sun: Dark Dawn shows Matthew using a Psynergy spell that appears to be a Psynergy from this series in full 3D.

Basic Description[edit]

Thorn, Briar, and Nettle are offensive, ranged Psynergies. The overall power of each stage is determined by comparing the user's Venus Power and the target's Venus Resistance, and multiplying the resultant ratio by the base power of the Psynergy being used.

Star venus.gif Venus 6 PP
Range 3.gif
"Attack with stabbing thorns." (GS-TLA)
"Strike with stabbing thorns." (DD-present)
Attack up to three enemies with a base power of 35.
Star venus.gif Venus 11 PP
Range 3.gif
"Attack with sharpened briars." (GS-TLA)
"Strike with sharpened briars."(DD-present)
Attack up to three enemies with a base power of 70.
Nettle.gif NettleDD.gif
Star venus.gif Venus 23 PP
Range 5.gif
"Attack with stinging nettles." (GS-TLA)
"Strike with stinging nettles." {DD-present)
Attack up to five targets with a base power of 140.

Visually, each stage of the Thorn series features a group of spike-covered vines sequentially growing out of the ground directly underneath the enemies. The number and size of the spiked vines progressively increases with each stage of the series. In Dark Dawn, the spiked vines also have a number of red-colored flowers growing on them.

Damage Calculations[edit]

Elemental Power attacks such as Thorn, Briar, and Nettle use a set base power as the base damage to be modified. For example, the base power of Nettle is 140. Thus an unmodified Nettle would deal around 140 points of damage.

The respective base damage value for the Psynergy being used is then entered into the following equation:

final damage = (base damage) * (1 + (User's Venus Power - Enemy's Venus Resistance) / 200)

To word this in prose, Thorn, Briar and Nettle take the base damage of the particular attack, and then modify this by how much higher or lower the user's Venus Power is than the target's Venus Resistance. The difference between the user's Venus Power and the user's Venus Resistance is then divided by 200, then 1 is added to this, resulting in what can be called the "elemental damage multiplier". This number is what the Psynergies' damage is multiplied by.

Nettle being cast in the GBA games.

For example, if an Adept with a Venus Power of 150 casts Nettle on a monster with a Venus Resistance of 50:

  • damage = (base damage) * (1 + (Power - Resistance) / 200)
  • damage = (140) * (1 + (150 - 50) / 200)
  • damage = (140) * (1 + 100 / 200)
  • damage = (140) * (1 + 0.5)
  • damage = 140 * 1.50
  • damage = 210

Therefore, a Nettle cast under these circumstances would deal approximately 210 points of damage to the main target. Since Nettle is a ranged Psynergy, adjacent targets would take a percentage of the total damage, with the percentage decreasing as the distance from the main target increases.


The Thorn series is available to the Miko class series, a mono-elemental class unique to Himi. Himi can access this class when she has no or only Venus Djinn Set to her. Additionally, the series is also available to the Swordsman (Venus) class series and the Dragoon class series. Hence, it's possible for all Venus, Mercury, and Mars Adepts to use this series. However, the Swordsman class requires a combination of either Venus and Mercury Djinn, while the Dragoon class requires a mixture of Venus, Mars, and Mercury Djinn, with the specific mix differing depending on the element of the Adept.

All three classes learn Thorn at Level 4 and Nettle at Level 36. Briar is available at Level 14 for the Swordsman and Miko, while the Dragoon class learns it at Level 17.


General: The Thorn series is a moderately powerful series, available fairly early. The series is the only Venus Psynergy available to the Swordsman and Dragoon class, meaning that it will be a main form of offense for those two classes. In terms of overall power, however, it is outperformed by the Gaia series.

By Game[edit]

Golden Sun: The Thorn series can prove to be a valuable Venus-based multi-target Psynergy, as it is more powerful than the Quake Psynergy series and available earlier than the multi-target variants of the Spire Psynergy series. In certain situations, the player may choose to use the Swordsman series to attack Mars-based enemies, allowing Thorn and Briar to see use.

Golden Sun: The Lost Age: The Thorn series is easily accessible, as the player has access to a Mercury Djinni well before they have access to a Mercury Adept, encouraging a class-change.

Golden Sun: Dark Dawn: For Himi, the Thorn series lies in between the cheaper Growth series and the more powerful Roaring Dragon Psynergy series. As Slaying Dragon and Reining Dragon are fairly expensive, Nettle can still see use in situations where the player wants to conserve PP.


Bramble Seed.gif An item known as a Bramble Seed can be used by any Adept to emulate the Nettle Psynergy for Venus Damage to multiple enemies. Bramble Seeds are found as random drops from enemies or as treasure chest.

Venus Psynergy in Golden Sun and The Lost Age
Elemental Base Damage Bramble CardDemon Night / Thorny GraveGaia seriesGrowth seriesPunji seriesQuake seriesRockfall seriesSpire seriesThorn series
Elemental Phys. Attack AnnihilationCall DemonDinoxGrand GolemHelm Splitter / Skull SplitterLiving ArmorMinotaurusRagnarok / OdysseySabre DanceTroll
Support CondemnCure seriesCurseDeath CardFire PuppetHauntLichRevive
Utility CarryCatchGrindGrowthRetreatSandScoopTremor
Venus Psynergy in Dark Dawn
Elemental Base Damage Demon Night / Thorny GraveGaia seriesGrowth seriesPunji seriesQuake seriesRoaring Dragon seriesRockfall seriesSpire seriesThorn seriesToxic GritUndead Curse series
Elemental Phys. Attack AnnihilationHelm Splitter / Skull SplitterRagnarok / OdysseyPsynergy SlamPsynergy Surge
Support CondemnCure seriesCurseFear PuppetHauntReviveWeapon Grace
Utility GripGrowthMoveRetreatSearch