Cutting Edge and Plume Edge are a series of Mercury-aligned Psynergy in each game in the Golden Sun series, first introduced in Golden Sun and expanded in Golden Sun: The Lost Age. Much like Psynergy such as Ragnarok and Odyssey, these do not amount to damaging elemental attacks that affect multiple enemies at a time and directly deal base damage points. Instead, they are single-target attacks deriving from the user's Attack statistic and mitigated by the target's Defense statistic, and then set bonus damage is added. Then, a comparison between the user's Mercury Power and the enemy's Mercury Resistance vaguely influences the resulting damage. Cutting Edge is introduced in the first game as the defining elemental physical attack move that Venus Adepts and Mars Adepts will attain when assigned the Swordsman class series (the Venus variation being renamed the Crusader class series in Golden Sun: Dark Dawn) with the help of Mercury Djinn, and its upgraded counterpart introduced in the second game boasts significantly higher added damage. These Psynergies are also featured on the tri-elemental Dragoon class series, and both class series can be made to appear on Mercury Adepts through specific arrangements of large numbers of Djinn.
...that if Jenna is downed in the prologue sequence to The Lost Age outside Venus Lighthouse, Alex will save her and then the player gets to try again?
...that characters in Dark Dawn will increase their weapon skill when they attack your party while possessed by the Ancient Devil?
...that while the Revive Psynergy is available to a Venus Adept through the default Squire class series only from Gallant onward, it is available to a Venus Adept in any stage of the Swordsman class series?
...that the entire Kolima Village subplot in Golden Sun can be done with Mia in the party because of having done the Mercury Lighthouse segment first, and Mia makes some additional comments?
...that in Dark Dawn, while any party member or any enemy is highlighted as the target(s) for a battle command, moving the stylus across the screen manually rotates the camera?
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We are on a perpetual quest to create and maintain a comprehensive reference and database for Nintendo and Camelot Software Planning's series of Japanese role-playing games, Golden Sun. If you're feeling adventurous, you are invited to join our intrepid party of Adepts and help us craft the most complete tome of knowledge for the Golden Sun series on the Internet.
Note that this site contains SPOILERS. While templates are in place in various articles to indicate to readers that there is storyline material that players yet to complete the games may not yet know and may not yet want to know, if you haven't finished the currently-released games, then you read at your own risk.
11/24/2018: Datamining for Super Smash Bros. Ultimate confirms a total of eight Golden Sun-related Spirits, an Isaac-themed costume for the Mii Swordfighter, and both music tracks returning from previous Smash games.